Understanding API ICP653 Reading 6-Worksheet-03 Part 2
Understanding api icp653 reading 6 worksheet 03 part 2
Understanding api icp653 reading 6 worksheet 03 part 2
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<strong>Understanding</strong> <strong>API</strong><strong>ICP653</strong><br />
<strong>Reading</strong> 6 <strong>Worksheet</strong>-<strong>03</strong> <strong>Part</strong> 2 of 2<br />
My Pre-exam Self Study Notes<br />
9 th February 2015<br />
大 年 初 二 努 力 中<br />
Charlie Chong/ Fion Zhang
Oil Export Terminal<br />
Charlie Chong/ Fion Zhang
2016 大 年 初 二 努 力 学 习 中 !<br />
Charlie Chong/ Fion Zhang
有 书 真 富 贵 ,<br />
没 事 小 神 仙<br />
Charlie Chong/ Fion Zhang
<strong>API</strong> 653 Exam Administration -- Publications<br />
Effectivity Sheet FOR: November 2015, March<br />
2016 and July 2016<br />
Listed below are the effective editions of the publications required for this<br />
exam for the date(s) shown above.<br />
<strong>API</strong> Recommended Practice 571, Damage Mechanisms Affecting Fixed Equipment in<br />
the Refining Industry, Second Edition, April 2011<br />
Charlie Chong/ Fion Zhang
<strong>API</strong> 653 Exam Administration -- Publications<br />
Effectivity Sheet FOR: November 2015, March<br />
2016 and July 2016<br />
Listed below are the effective editions of the publications required for this<br />
exam for the date(s) shown above.<br />
<strong>API</strong> Recommended Practice 571, Damage Mechanisms Affecting Fixed Equipment in<br />
the Refining Industry, Second Edition, April 2011<br />
Charlie Chong/ Fion Zhang
ATTENTION: Only the following sections / mechanisms from RP 571 are<br />
included on the exam:<br />
Section 3, Definitions Par.<br />
4.2.7 Brittle Fracture<br />
4.2.16 Mechanical Fatigue<br />
4.3.2 Atmospheric Corrosion<br />
4.3.3 Corrosion Under insulation (CUI)<br />
4.3.8 Microbiologically Induced Corrosion (MIC)<br />
4.3.9 Soil Corrosion<br />
4.3.10 Caustic Corrosion<br />
4.5.1 Chloride Stress Corrosion Cracking (Cl-SCC)<br />
4.5.3 Caustic Stress Corrosion Cracking (Caustic Embrittlement)<br />
5.1.1.10 Sour Water Corrosion (Acidic)<br />
5.1.1.11 Sulfuric Acid Corrosion<br />
Charlie Chong/ Fion Zhang
• <strong>API</strong> Recommended Practice 575, Inspection of Atmospheric and Low-<br />
Pressure Storage Tanks, Third Edition, April 2014<br />
• <strong>API</strong> Recommended Practice 577 – Welding Inspection and Metallurgy,<br />
Second Edition, December 2013<br />
• <strong>API</strong> Standard 650, Welded Tanks for Oil Storage, Twelfth Edition, March<br />
2013 with Addendum 1 (September 2014), Errata 1 (July 2013), and<br />
Errata 2 (December 2014).<br />
• <strong>API</strong> Recommended Practice 651, Cathodic Protection of Aboveground<br />
Petroleum Storage Tanks, Fourth Edition, September 2014.<br />
• <strong>API</strong> Recommended Practice 652, Lining of Aboveground Petroleum<br />
Storage Tank Bottoms, Fourth Edition, September 2014<br />
• <strong>API</strong> Standard 653, Tank Inspection, Repair, Alteration, and<br />
Reconstruction, Fifth Edition, November 2014.<br />
Charlie Chong/ Fion Zhang
• American Society of Mechanical Engineers (ASME), Boiler and Pressure<br />
Vessel Code, 2013 Edition<br />
i. ASME Section V, Nondestructive Examination, Articles 1, 2, 6, 7 and<br />
23 (section SE-797 only)<br />
ii. Section IX, Welding and Brazing Qualifications (Welding Only)<br />
See end of this study note for <strong>API</strong> Official BOK<br />
Charlie Chong/ Fion Zhang
http://independent.academia.edu/CharlieChong1<br />
http://www.yumpu.com/zh/browse/user/charliechong<br />
http://issuu.com/charlieccchong<br />
Charlie Chong/ Fion Zhang
Charlie Chong/ Fion Zhang<br />
http://greekhouseoffonts.com/
The Magical Book of Tank Inspection ICP<br />
Charlie Chong/ Fion Zhang
Charlie Chong/ Fion Zhang
闭 门 练 功<br />
Charlie Chong/ Fion Zhang
闭 门 练 功<br />
Charlie Chong/ Fion Zhang
闭 门 练 功<br />
Charlie Chong/ Fion Zhang
闭 门 练 功<br />
Charlie Chong/ Fion Zhang<br />
http://news.3zitie.cn/article/20121013/16145_1.html
Charlie Chong/ Fion Zhang<br />
Fion Zhang at Shanghai<br />
9 th February 2016
<strong>API</strong>-653 SECTION 8<br />
Q1. When a tank is to be dismantled and reconstucted at another location,<br />
what size are the roof, shell and bottom plates cut?<br />
a. Cut the shell plates 8’ by 20’ and the roof & bottom plates 6’ by 18’.<br />
b. Cut the shell plates 7.5’ by 10’, the roof and bottom plates 6’ by 8’.<br />
c. Cut all plates a minimum of 7.5 feet wide by 10 feet long.<br />
d. Cut all plates to any size that are readily transportable to the new site.<br />
ANS: D<br />
Q2. If a reconstructed tank’s bottom is to be removed and scrapped and the<br />
shell to bottom weld is ½ inch, how high above the tank’s bottom would you<br />
cut the shell plate?<br />
a. 1”<br />
b. 3”<br />
c. ½ ”<br />
d. 2”<br />
ANS: A (C?)<br />
Charlie Chong/ Fion Zhang
Figure 10.1—Tank Shell and Bottom Cut Locations<br />
Charlie Chong/ Fion Zhang
Q3. When a 5/8 inch thick double butt welded tank shell plate (weld width is<br />
3/4”) is dismantled for reconstruction, how much metal must be removed from<br />
each side of the weld (measured from the weld center) to remove the HAZ?<br />
a. 3/4”<br />
b. 3/8”<br />
c. 5/8”<br />
d. 1/2”<br />
ANS: C (B?) ( ½ weld width or ¼ “ whichever is less)<br />
Q4. Tanks and their structural attachments shall be welded in accordance<br />
with the processes specified in:<br />
a. <strong>API</strong> Standard 12A and the requirements of <strong>API</strong> 653.<br />
b. <strong>API</strong> Standard 12C and the requirements of <strong>API</strong> 652.<br />
c. <strong>API</strong> Standard 650 and the requirements of <strong>API</strong> 653.<br />
d. <strong>API</strong> Standard 650 and the requirements of <strong>API</strong> 651.<br />
ANS: C<br />
Charlie Chong/ Fion Zhang
<strong>API</strong>653: 10.3.3 Shells<br />
10.3.3.1 Tank shell plates may be dismantled using one of the following<br />
methods or a combination thereof.<br />
a) Any shell ring may be dismantled by cutting out existing weld seams and<br />
the heat affected zone (HAZ) of the weld. For the purpose of this method, the<br />
minimum HAZ to be removed will be ½ of the weld metal width or 1/4 in.,<br />
whichever is less, on both sides of the weld seam.<br />
b) Any shell ring ½ in. thick or thinner may be dismantled by cutting through<br />
the weld without removing the HAZ.<br />
Note: from the fusion line?<br />
Charlie Chong/ Fion Zhang
For the purpose of this method, the minimum HAZ to be removed will be ½ of<br />
the weld metal width or 1/4 in. (6mm), whichever is less, on both sides of the<br />
weld seam.<br />
½ of the weld metal<br />
width or 1/4 in (6mm)<br />
whichever is less<br />
Charlie Chong/ Fion Zhang
Any shell ring ½ in. thick or thinner may be dismantled by cutting through the<br />
weld without removing the HAZ.<br />
Charlie Chong/ Fion Zhang
Q5. No welding may be performed during the reconstruction of a tank if the<br />
temperature of the base metal is less than:<br />
a. 0 degrees F.<br />
b. 32 degrees F.<br />
c. 0 degrees C.<br />
d. 32 degrees C.<br />
ANS: A<br />
Q6. On a reconstructed tank, when the temperature of the base metal is<br />
between 0 degrees F. and 32 degrees F., or the thickness of the tank plate is<br />
in excess of 1 inch, the base metal within 3 inches of the place where welding<br />
is to be started shall be heated to a temperature warm to the hand<br />
(approximately _____ ) before welding.<br />
a. 12 degrees C.<br />
b. 24 degrees C.<br />
c. 70 degrees F.<br />
d. 140 degrees F.<br />
ANS: D<br />
Charlie Chong/ Fion Zhang
Q7. On a reconstructed tank, no welding of any kind shall be performed when<br />
the surface of the parts to be welded:<br />
a. are above 100 degrees C.<br />
b. are clean and properly prepared.<br />
c. are wet from rain, snow, or ice.<br />
d. are properly aligned.<br />
ANS: C<br />
Q8. On a reconstructed tank, the maximum undercutting of base metal for<br />
welded vertical butt joints is:<br />
a. 1/16 inch.<br />
b. 1/64 inch.<br />
c. 1/32 inch.<br />
d. 1/8 inch.<br />
ANS:B<br />
Charlie Chong/ Fion Zhang
Q9. On a reconstructed tank, the maximum undercutting of base metal for<br />
welded horizontal butt joints is:<br />
a. 1/16 inch.<br />
b. 1/64 inch.<br />
c. 1/32 inch.<br />
d. 1/8 inch.<br />
ANS: C<br />
Q10. On a reconstructed tank, according to <strong>API</strong> Standard 653, reinforcement<br />
of new welds on all butt joints on each side of the plate shall not exceed the<br />
following:<br />
10A. For plate thickness < 1/2 inch, the maximum reinforcement thickness for<br />
vertical joints is:<br />
a. 1/32 inch<br />
b. 1/64 inch<br />
c. 1/16 inch<br />
d. 3/32 inch<br />
ANS: D<br />
Charlie Chong/ Fion Zhang
10B. For plate thickness < 1/2 inch, the maximum reinforcement thickness for<br />
horizontal joints is:<br />
a. 1/32 inch<br />
b. 1/16 inch<br />
c. 1/8 inch<br />
d. 3/32 inch<br />
ANS: C<br />
Charlie Chong/ Fion Zhang
Q11. When reconstructing a tank, according to <strong>API</strong> Standard 653,<br />
reinforcement of new welds on all butt joints on each side of the plate shall<br />
not exceed the following:<br />
11 A. For plate thickness greater than 1/2" through 1", the maximum<br />
reinforcement thickness for vertical joints is:<br />
a. 1/16"<br />
b. 1/8"<br />
c. 1/64"<br />
d. 1/32“<br />
ANS: B<br />
Q11 B. For plate thickness greater than 1/2" through 1", the maximum<br />
reinforcement thickness for horizontal joints is:<br />
a. 1/32"<br />
b. 1/16"<br />
c. 1/8"<br />
d. 3/16“<br />
ANS:D<br />
Charlie Chong/ Fion Zhang
Q12. When reconstructing a tank, according to <strong>API</strong> Standard 653,<br />
reinforcement of new welds on all butt joints on each side of the plate shall<br />
not exceed the following:<br />
12A. For thickness greater than 1", the maximum reinforcement thickness for<br />
vertical joints is:<br />
a. 1/4"<br />
b. 1/8"<br />
c. 3/32"<br />
d. 3/16"<br />
ANS: D<br />
12B. For thickness greater than 1", reinforcement thickness for horizontal<br />
joints is a maximum of:<br />
a. 1/32"<br />
b. 1/16"<br />
c. 1/8"<br />
d. 1/4“<br />
ANS:D<br />
Charlie Chong/ Fion Zhang
Q13. During reconstruction of a tank, manually welded tack welds used in the<br />
assembly of vertical joints of tank shells:<br />
a. shall not remain in the finished joint.<br />
b. may remain in the finished joint.<br />
c. are acceptable provided the Authorized Inspector agrees.<br />
d. are acceptable in reconstructed tanks.<br />
ANS: A<br />
Q14. In the assembly of vertical joints of a reconstructed tank using the<br />
submerged-arc process, tack welds to be left in place shall be made:<br />
a. by knowledgeable welders.<br />
b. by certified tank inspectors.<br />
c. by qualified welders.<br />
d. by welders in a workman like manner.<br />
ANS: C<br />
Charlie Chong/ Fion Zhang
Q15. During reconstruction of a tank, if weldable primer coatings are used on<br />
surfaces to be welded:<br />
a. they shall be included in the job standards where the brand, formulation<br />
and maximum thickness will be listed.<br />
b. they shall be included in welding procedure qualification tests for the brand,<br />
formulation and maximum thickness of primer applied.<br />
c. they shall be included in the tank contract and be approved by the tank<br />
owner and the Authorized Inspector.<br />
d. they shall be included on the construction drawings with notes requiring<br />
the Authorized Inspector to PT the first weld pass.<br />
ANS: B<br />
Charlie Chong/ Fion Zhang
Q16. During reconstruction of a tank, the welding of the shell to the bottom<br />
(except for the door sheet) shall:<br />
a. be left until the welding of the bottom joints are completed.<br />
b. be completed before the welding of the bottom joints.<br />
c. be completed after the welding of bottom joints.<br />
d. be made at any time before the roof is installed.<br />
ANS: B<br />
Q17. During reconstruction of a tank shell with plate thickness 5/8 inch or less,<br />
misalignment in completed vertical joints shall not exceed:<br />
a. 3/16 inch.<br />
b. 1/8 inch.<br />
c. 1/4 inch.<br />
d. 1/16 inch.<br />
ANS: D<br />
Charlie Chong/ Fion Zhang
Q18. During reconstruction of a tank shell with plate thickness exceeding 5/8<br />
inch, misalignment in completed vertical joints shall not exceed:<br />
a. 20% of the plate thickness, with a maximum of 3/16".<br />
b. 15% of the plate thickness, with a maximum of 1/8".<br />
c. 10% of the plate thickness, with a maximum of 1/8".<br />
d. 5% of the plate thickness, with a maximum of 1/16".<br />
ANS: C<br />
Q19. In reconstructing a tank, how much preheat is required for making<br />
horizontal and vertical welds in tank shells constructed of material over 1.5<br />
inches thick?<br />
a. 50 degrees F.<br />
b. 140 degrees F.<br />
c. 75 degrees F.<br />
d. 200 degrees F.<br />
ANS: D<br />
Charlie Chong/ Fion Zhang
Q20. During reconstruction of a tank, for horizontal and vertical joints in tank<br />
shell courses constructed of material over 1.5 inches thick, the maximum<br />
thickness of each weld pass shall not be over:<br />
a. 1/4"<br />
b. 3/4"<br />
c. 3/16"<br />
d. 1/2"<br />
ANS: B<br />
Q21. When reconstructing a tank, the maximum out-of-plumbness of the top<br />
of the shell relative to the bottom of the shell shall not exceed:<br />
a. 1/100 of the total tank height, with a maximum of 5 inches.<br />
b. 1/50 of the total tank height, with a maximum of 5 inches.<br />
c. 1/100 of the total tank height, with a maximum of 6 inches.<br />
d. 1/50 of the total tank height, with a maximum of 6 inches.<br />
ANS: A<br />
Charlie Chong/ Fion Zhang
Q22. A reconstructed tank with a diameter of 100 feet and a height of 40 feet<br />
is checked for plumbness. A plumb bob is dropped from the top outside edge<br />
of the tank shell. A measurement from the end of the plumb bob to the bottom<br />
outside edge of the tank shell reveals that the tank will not meet the out-of<br />
plumbness criteria of <strong>API</strong> Standard 653. What measurement was obtained?<br />
a. A measurement greater than 0.4" was obtained.<br />
b. A measurement greater than 4.2" was obtained.<br />
c. A measurement greater than 4.8" was obtained.<br />
d. A measurement greater than 1.2" was obtained.<br />
ANS: C<br />
Charlie Chong/ Fion Zhang
Q23. A reconstructed tank with a height of 36 feet and a diameter of 100 feet<br />
is checked for out-of-plumbness. Calculate the maximum out-of-plumbness<br />
acceptable.<br />
a. 5.00"<br />
b. 5.32"<br />
c. 4.00"<br />
d. 4.32"<br />
ANS: D<br />
Q24. A reconstructed tank, 100 feet in diameter and 40 feet high is checked<br />
for radius tolerance at a point 6 feet above the shell to bottom weld. The<br />
permissible radius tolerance is:<br />
a. 1.50" +<br />
b. 2.25" +<br />
c. 3.00" +<br />
d. 3.75" +<br />
ANS:B<br />
Charlie Chong/ Fion Zhang
Q25. When peaking is measured on a reconstructed tank with a horizontal<br />
sweep board, it shall not exceed:<br />
a. 3/4"<br />
b. 1/4"<br />
c. 1/2"<br />
d. 1"<br />
ANS: C (Banding 1” max)<br />
Q26. When peaking is measured on a reconstructed tank with a horizontal<br />
sweep board, what size board is used?<br />
a. 48" long board cut to the inside radius of the tank.<br />
b. 36" long board cut to the true inside radius of the tank.<br />
c. 48" long board cut to the true outside radius of the tank.<br />
d. 36" long board cut to the true outside radius of the tank.<br />
ANS:D<br />
<strong>API</strong>653: 10.5.4 Peaking<br />
With a horizontal sweep board 36-in. long, peaking shall not exceed ½ in. The<br />
sweep board shall be made to the true outside radius of the tank.<br />
Charlie Chong/ Fion Zhang
Q27. Banding, when measured on a reconstructed tank, is measured with a<br />
vertical sweep board _____ long.<br />
a. 24"<br />
b. 42"<br />
c. 36"<br />
d. 48“<br />
ANS: C<br />
Charlie Chong/ Fion Zhang
<strong>API</strong>-653 ANSWER KEY<br />
Charlie Chong/ Fion Zhang
<strong>API</strong>-653 SECTION 10<br />
Q1. When NDT examinations are to be performed:<br />
a. acceptance criteria from the latest edition of ASNT SNT-TC-1A must be<br />
followed.<br />
b. an understanding between the performers and the Inspector (s) is required.<br />
c. oral agreements must be finalized between the owner-user and the<br />
performers.<br />
d. procedures, qualifications and acceptance criteria shall be prepared per<br />
<strong>API</strong> 650 & 653.<br />
ANS: D<br />
Q2. Personnel performing nondestructive examinations of <strong>API</strong> 653 tanks shall<br />
be qualified:<br />
a. in accordance with <strong>API</strong> Standard 650 and supplemental requirements of<br />
<strong>API</strong> 653.<br />
b. in accordance with <strong>API</strong> Code 510 and supplemental ASTM requirements.<br />
c. in accordance with <strong>API</strong> 651 and supplemental requirements of <strong>API</strong> 652.<br />
d. in accordance with <strong>API</strong> 941 and supplemental requirements of <strong>API</strong> 945.<br />
ANS: A<br />
Charlie Chong/ Fion Zhang
Q3. The area of a tank shell in the immediate area of an addition of a<br />
reinforcing plate to an existing penetration, or when hot tapping:<br />
a. shall be liquid penetrant checked.<br />
b. shall be radiographed.<br />
c. shall be ultrasonically checked.<br />
d. shall be magnetic particle checked.<br />
ANS: C<br />
Q4. What are you looking for when you check the immediate area of an<br />
addition of a reinforcing plate to an existing penetration?<br />
a. You are searching the area for cracks.<br />
b. You are looking for possible laminations.<br />
c. You are trying to find possible exterior scale.<br />
d. You are endeavoring to satisfy <strong>API</strong> 651 requirements.<br />
ANS: B<br />
Charlie Chong/ Fion Zhang
Q5. When existing attachment welds of existing reinforcing plates are<br />
removed from a tank shell, cavities resulting from gouging or grinding<br />
operations shall be:<br />
a. examined by radiograph and ultrasonic or eddy current methods.<br />
b. examined by ultrasonic and vacuum box or diesel oil methods.<br />
c. examined by radiograph and tracer gas or diesel oil methods.<br />
d. examined by visual and magnetic particle or liquid penetrant methods.<br />
ANS: D<br />
Q6. Completed welds attaching nozzle neck to shell, and reinforcing plate to<br />
shell and to nozzle neck:<br />
a. shall be examined by MT or PT testing methods.<br />
b. shall be examined by VT or RT testing methods.<br />
c. shall be examined by VT or UT testing methods.<br />
d. shall be examined by ET or UT testing methods.<br />
ANS: A<br />
Charlie Chong/ Fion Zhang
Q7. Completed welds of stress relieved assemblies of shell penetrations shall<br />
be examined by visual and magnetic particle or liquid penetrant methods:<br />
a. after stress relief and after the hydrostatic test.<br />
b. before stress relief and after stress relief.<br />
c. after stress relief, but before hydrostatic test.<br />
d. before stress relief and before hydrostatic test.<br />
ANS: C<br />
Q8. For shell penetrations installed using insert plates, the completed butt<br />
welds between the insert plate and the shell plate:<br />
a. shall be fully radiographed.<br />
b. shall be fully visually inspected.<br />
c. shall be fully magnetic particle inspected.<br />
d. shall be fully liquid penetrant inspected.<br />
ANS:A<br />
Charlie Chong/ Fion Zhang
Q9. Completed repairs of butt welds shall be examined over:<br />
a. their full length by a competent inspector.<br />
b. their full length by RT or UT methods.<br />
c. their full width by RT or UT methods.<br />
d. their full length by the appropriate Level II Inspector.<br />
ANS: B<br />
Q10. When repairs to fillet welds are complete, they must be examined over:<br />
a. their full length by an appropriate NDE method.<br />
b. 50% of their length by an appropriate NDE method.<br />
c. their full width by an appropriate NDE method.<br />
d. their full width by a competent person.<br />
ANS: A<br />
Charlie Chong/ Fion Zhang
Q11. Completed welds of temporary or new permanent attachments made to<br />
shells of <strong>API</strong> Standard 650 Group IV, IVA, V, or VI materials shall be<br />
examined by _____ and MT (or at the option of the purchaser by<br />
PT methods).<br />
a. radiography<br />
b. eddy current<br />
c. visual<br />
d. a vacuum box<br />
ANS: C<br />
Q12. An inspector is responsible for inspecting a new weld that attaches an<br />
existing shell plate to a new replacement shell plate. The plate thickness of<br />
the plates are 1.0625 inches thick. The weld is a double butt-weld. How would<br />
you examine the back gouged surface of the root and final pass?<br />
a. UT or VT<br />
b. MT or PT<br />
c. RT or PT<br />
d. ET or RT<br />
ANS: B<br />
Charlie Chong/ Fion Zhang
Q13. An inspector is responsible for inspecting a new shell plate that is joined<br />
to another new shell plate. What inspection method(s) is/are required by <strong>API</strong><br />
653.<br />
a. UT<br />
b. VT<br />
c. PT<br />
d. RT<br />
ANS: D<br />
Q14. When using diesel oil to test a first pass shell-to-bottom weld, what is<br />
the minimum time the oil shall be<br />
allowed to stand?<br />
a. 4 hours.<br />
b. 3 hours.<br />
c. 2 hours.<br />
d. 1 hour.<br />
ANS:A<br />
Charlie Chong/ Fion Zhang
Q15. When using diesel oil to test a first pass shell-to-bottom weld, what is<br />
the "preferred time" for the oil to stand on the weld?<br />
a. 3 hours.<br />
b. overnight.<br />
c. 24 hours.<br />
d. 4 hours.<br />
ANS: B<br />
Q16. An inspector is responsible for inspecting an existing shell-to-bottom<br />
weld prior to installing a welded-on lap patch. What method is called for by<br />
<strong>API</strong> 653?<br />
a. ET and RT or NRT<br />
b. PT and VT or LT<br />
c. UT and MT or PT<br />
d. VT and MT or PT<br />
ANS: D<br />
Charlie Chong/ Fion Zhang
Q17. When an existing shell-to-bottom weld is inspected prior to installing a<br />
welded-on lap patch that measures 18 inches on the shell side, what distance<br />
along the existing weld would you inspect to satisfy the requirements of <strong>API</strong><br />
653?<br />
a. 20 inches<br />
b. 24 inches<br />
c. 18 inches<br />
d. 30 inches<br />
ANS: D<br />
Q18. If the owner-user of a tank has reviewed and approved _________ to<br />
test the integrity of welded bottom joints (for their entire length), it may be<br />
used in place of a vacuum box and solution film.<br />
a. gas and a combustible gas detector<br />
b. a suitable vapor and a oxygen detector<br />
c. a liquid hydrocarbon and a detector<br />
d. a suitable tracer gas and compatible detector<br />
ANS: D<br />
Charlie Chong/ Fion Zhang
Q19. What method of inspection must be employed over the full length of the<br />
weld attaching a welded-on patch plate to a tank bottom?<br />
a. PT<br />
b. MT<br />
c. VT<br />
d. UT<br />
ANS:C<br />
Q20. If a welded-on patch plate is placed in the critical zone of a tank bottom,<br />
what methods of inspection shall be performed over its full length?<br />
a. VT & MT or PT<br />
b. PT & UT or VT<br />
c. MT & ET or UT<br />
d. UT & PT or MT<br />
ANS:A<br />
Charlie Chong/ Fion Zhang
Q21. An owner-user has a six vertical shell joint repaired in one of his tanks<br />
(lack of penetration was found over 2” to 6” runs in each joint). How many<br />
radiographs would you require?<br />
a. twelve.<br />
b. six.<br />
c. four.<br />
d. three.<br />
ANS: B<br />
Q22. A repair is made on an existing tank by replacing the weld for a length of<br />
100 feet on one of the shell rings. The upper horizontal weld of this<br />
replacement intersects with four existing vertical welds. In the<br />
upper horizontal shell joint of this replacement, how many total radiographs<br />
would be required?<br />
a. six.<br />
b. two.<br />
c. twelve.<br />
d. four.<br />
ANS: A<br />
Charlie Chong/ Fion Zhang
Q23. A reconstructed tank has 88 junctions of new welds over existing weld<br />
seams. How many radiographs are required?<br />
a. 88<br />
b. 30<br />
c. 44<br />
d. 22<br />
ANS: D<br />
Q24. What is the minimum number of radiographs required, when a new or<br />
replacement circular insert plate is<br />
butt welded to the shell?<br />
a. a minimum of two radiographs.<br />
b. a minimum of three radiographs.<br />
c. a minimum of one radiograph.<br />
d. a minimum of four radiographs.<br />
ANS: C<br />
Charlie Chong/ Fion Zhang
Q25. When radiographing joints, weld intersections, etc., on repaired or<br />
reconstructed tanks, according to <strong>API</strong> Standard 653, the minimum diagnostic<br />
length of each radiograph shall be:<br />
a. four inches.<br />
b. eight inches.<br />
c. six inches.<br />
d. seventeen inches.<br />
ANS: C<br />
Q26. Each radiograph film of a repaired weld or a weld on a reconstructed<br />
tank shall show:<br />
a. an identification of the inspector.<br />
b. an identification of the welder or welders making the weld.<br />
c. an identification showing the time the radiograph was made.<br />
d. a step gage identifying the thickness of the weld.<br />
ANS: B<br />
Charlie Chong/ Fion Zhang
Q27. Radiographs and radiograph records of all repaired welds shall be:<br />
a. marked as complete.<br />
b. marked <strong>API</strong> 653 Repair.<br />
c. marked with the letter "R".<br />
d. marked with the symbol of the repair firm.<br />
ANS: C<br />
Q28. A reconstructed tank and any tank that has undergone major repairs or<br />
major alterations shall have a full hydrostatic test, held for:<br />
a. 18 hours.<br />
b. 24 hours.<br />
c. 12 hours.<br />
d. 8 hours.<br />
ANS: B<br />
Charlie Chong/ Fion Zhang
<strong>API</strong>-653 ANSWER KEY<br />
Charlie Chong/ Fion Zhang
Re-Read Radiography Testing<br />
Charlie Chong/ Fion Zhang
Q21. An owner-user has a six vertical shell joint repaired in one of his tanks<br />
(lack of penetration was found over 2” to 6” runs in each joint). How many<br />
radiographs would you require?<br />
a. twelve.<br />
b. six.<br />
c. four.<br />
d. three.<br />
ANS: B<br />
Q23. A reconstructed tank has 88 junctions of new welds over existing weld<br />
seams. How many radiographs are required?<br />
a. 88<br />
b. 30<br />
c. 44<br />
d. 22<br />
ANS: D<br />
Charlie Chong/ Fion Zhang
<strong>API</strong>653: 12.2 Radiographs<br />
12.2.1 Number and Location of Radiographs<br />
The number and location of radiographs of the full penetration shell plate to<br />
shell plate welds shall be in accordance with <strong>API</strong> 650, Section 8.1.2 and the<br />
following additional requirements:<br />
12.2.1.1 For vertical joints:<br />
a) new replacement shell plates to new shell plates, no additional<br />
radiographs required, other than those required by <strong>API</strong> 650, Section<br />
8.1.2.2 and Figure 8-1 for new construction;<br />
b) new replacement shell plates to existing shell plates, one additional<br />
radiograph shall be taken in each joint;<br />
c) repaired joints in existing shell plates shall have one additional radiograph<br />
taken in each joint.<br />
Charlie Chong/ Fion Zhang
<strong>API</strong>650: Figure 8.1—Radiographic Requirements for Tank Shells<br />
Charlie Chong/ Fion Zhang
12.2.1.1 For vertical joints:<br />
new replacement shell plates to new shell plates, no additional radiographs<br />
required, other than those required by <strong>API</strong> 650, Section 8.1.2.2 and Figure 8-<br />
1 for new construction;<br />
Additional vertical RT<br />
Charlie Chong/ Fion Zhang
12.2.1.1 For vertical joints:<br />
new replacement shell plates to existing shell plates, one additional<br />
radiograph shall be taken in each joint;<br />
Additional vertical RT<br />
Charlie Chong/ Fion Zhang
12.2.1.1 For vertical joints:<br />
repaired joints in existing shell plates shall have one additional radiograph<br />
taken in each joint.<br />
Additional vertical RT<br />
Charlie Chong/ Fion Zhang
Q21. An owner-user has a six vertical shell joint repaired in one of his tanks<br />
(lack of penetration was found over 2” to 6” runs in each joint). How many<br />
radiographs would you require?<br />
a. twelve.<br />
b. six.<br />
c. four.<br />
d. three.<br />
ANS: B (6+additional 6?)<br />
<strong>API</strong>653: 12.2.1.1 For vertical joints:<br />
a) new replacement shell plates to new shell plates, no additional<br />
radiographs required, other than those required by <strong>API</strong> 650, Section<br />
8.1.2.2 and Figure 8-1 for new construction;<br />
b) new replacement shell plates to existing shell plates, one additional<br />
radiograph shall be taken in each joint;<br />
c) repaired joints in existing shell plates shall have one additional radiograph<br />
taken in each joint.<br />
Charlie Chong/ Fion Zhang
12.2.1.2 For horizontal joints:<br />
a) new replacement shell plates to new shell plates, no additional<br />
radiographs required, other than those required by <strong>API</strong> 650, Section<br />
8.1.2.3 and Figure 8-11 for new construction;<br />
b) new replacement shell plates to existing shell plates, one additional<br />
radiograph for each 50 ft of repaired horizontal weld;<br />
c) repaired joints in existing shell plates shall have one additional radiograph<br />
taken for each 50 ft of repaired horizontal weld.<br />
12.2.1.3 For intersections of vertical and horizontal joints:<br />
a) new replacement shell plates to new shell plates, no additional<br />
radiographs required, other than those required by <strong>API</strong> 650, Section 8.1.2<br />
and Figure 8-1 for new construction;<br />
b) new replacement shell plates to existing shell plates, each intersection<br />
shall be radiographed;<br />
c) all repaired intersections in existing shell plates shall be radiographed.<br />
Charlie Chong/ Fion Zhang
12.2.1.2 For horizontal joints:<br />
b) new replacement shell plates to existing shell plates, one additional<br />
radiograph for each 50 ft of repaired horizontal weld;<br />
c) repaired joints in existing shell plates shall have one additional radiograph<br />
taken for each 50 ft of repaired horizontal weld..<br />
one additional radiograph for each 50 ft of repaired<br />
Additional RT at horizontal<br />
weld at every 50 feet.<br />
Charlie Chong/ Fion Zhang
12.2.1.3 For intersections of vertical and horizontal joints:<br />
b) new replacement shell plates to existing shell plates, each intersection<br />
shall be radiographed;<br />
c) all repaired intersections in existing shell plates shall be radiographed.<br />
Additional intersection<br />
RT<br />
Charlie Chong/ Fion Zhang
Vertical/ Horizontal / Intersection additional RT<br />
one additional radiograph for each 50 ft of repaired<br />
Additonal vertical RT<br />
Additional RT at horizontal weld at every 50 feet.<br />
Additional intersection RT<br />
Charlie Chong/ Fion Zhang
Vertical/ Horizontal / Intersection additional RT<br />
one additional radiograph<br />
for each 50 ft of repaired<br />
Additonal vertical RT<br />
Additional RT at horizontal weld at every 50 feet.<br />
Additional intersection RT<br />
Charlie Chong/ Fion Zhang
Q23. A reconstructed tank has 88 junctions of new welds over existing weld<br />
seams. How many radiographs are required?<br />
a. 88<br />
b. 30<br />
c. 44<br />
d. 22<br />
ANS: D (A?)<br />
<strong>API</strong>653: 12.2.1.3 For intersections of vertical and horizontal joints:<br />
a) new replacement shell plates to new shell plates, no additional<br />
radiographs required, other than those required by <strong>API</strong> 650, Section 8.1.2<br />
and Figure 8-1 for new construction;<br />
b) new replacement shell plates to existing shell plates, each intersection<br />
shall be radiographed;<br />
c) all repaired intersections in existing shell plates shall be radiographed.<br />
Charlie Chong/ Fion Zhang
12.2.1.4 For reconstructed tanks, each butt-welded annular plate joint shall be<br />
radiographed in accordance with<br />
<strong>API</strong> 650, Section 8.1.2.9.<br />
12.2.1.5 For reconstructed tanks, radiographic examination is required for 25<br />
% of all junctions of new welds over<br />
existing seams.<br />
The owner/operator shall, with the consent of the contractor, determine the<br />
extent of further examination and repair<br />
that may be required.<br />
Any further examination or repair of existing welds will be handled by<br />
contractual agreement between the owner/<br />
operator and tank reconstruction contractor.<br />
12.2.1.6 New and replaced shell plate and door sheet welds shall be<br />
radiographed. All junctions between repair and<br />
existing welds shall be radiographed. If defects are found, 100 % radiography<br />
shall be performed on the repaired weld.<br />
Charlie Chong/ Fion Zhang
12.2.1.6.1 For circular replacement plates, a minimum of one radiograph shall<br />
be taken regardless of thickness.<br />
When the circular replacement plate is located in a shell plate with thickness<br />
exceeding 1 in., the weld shall be fully<br />
radiographed.<br />
12.2.1.6.2 For square and rectangular replacement plates, at least one<br />
radiograph shall be taken in a vertical joint,<br />
and at least one in a horizontal joint, and one in each corner. When the<br />
square or rectangular replacement plate is<br />
located in a shell plate with thickness exceeding 1 in., the vertical joints shall<br />
be fully radiographed.<br />
12.2.1.7 The minimum diagnostic length of each radiograph shall be 6 in.<br />
12.2.1.8 For penetrations installed using insert plates as described in 9.8.6,<br />
the completed butt welds between the<br />
insert plate and the shell plate shall be fully radiographed.<br />
Charlie Chong/ Fion Zhang
12.2.2 Acceptance Criteria for Existing Shell Plate to Shell Plate Welds<br />
If the radiograph of an intersection between a new and old weld detects<br />
unacceptable welds by the current applicable<br />
standard, the existing welds shall be:<br />
a) evaluated according to the as-built standard, or<br />
b) evaluated using fitness-for-service assessment, or<br />
c) repaired in accordance with 9.6.<br />
Charlie Chong/ Fion Zhang
12.2.3 Marking and Identification of Radiographs<br />
12.2.3.1 Each film shall show an identification of the welder(s) making the<br />
weld. A weld map showing location of<br />
welds, weld number, radiograph number, welder identification, and grading of<br />
each weld is an acceptable alternative<br />
to this requirement.<br />
12.2.3.2 Radiographs and radiograph records of all repaired welds shall be<br />
marked with the letter “R.”<br />
Charlie Chong/ Fion Zhang
End of Re-Read Radiography Testing<br />
Charlie Chong/ Fion Zhang
<strong>API</strong>-653 SECTION 11<br />
Q1. Tanks reconstructed in accordance with <strong>API</strong> 653, shall be identified by:<br />
a. a name plate as shown in <strong>API</strong> Standard 650.<br />
b. a metal stenciled marking on the shell.<br />
c. a painted marking on the shell.<br />
d. a corrosion-resistant metal nameplate per <strong>API</strong> 653.<br />
ANS: D<br />
Q2. The letters and numerals of the <strong>API</strong> 653 nameplate shall be embossed,<br />
engraved, or stamped on a corrosion-resistant plate in letters and numerals<br />
not less than _______ high.<br />
a. 1/16 inch<br />
b. 3/32 inch<br />
c. 1/8 inch<br />
d. 5/32 inch<br />
ANS: D<br />
Charlie Chong/ Fion Zhang
Q3. The <strong>API</strong> 650 nameplate on a tank that is altered or reconstructed<br />
according to <strong>API</strong> 653:<br />
a. shall be left attached to the tank.<br />
b. shall be removed completely.<br />
c. shall be removed and the information on it placed on the <strong>API</strong> 653<br />
nameplate.<br />
d. shall have the <strong>API</strong> 653 nameplate affixed over it.<br />
ANS: A<br />
Q4. The <strong>API</strong> 653 nameplate shall be attached to the tank shell:<br />
a. adjacent to the stairway.<br />
b. adjacent to the existing nameplate.<br />
c. on the side nearest an access road.<br />
d. adjacent to the doorsheet.<br />
ANS: B<br />
Charlie Chong/ Fion Zhang
Q5. Radiographs for <strong>API</strong> 653 tanks shall be kept for:<br />
a. for a minimum of five years.<br />
b. at least 3 months after the tank is constructed.<br />
c. the time agreed on by the constructor and the owner-user.<br />
d. one year.<br />
ANS: D<br />
Charlie Chong/ Fion Zhang
<strong>API</strong>-653 ANSWER KEY<br />
Charlie Chong/ Fion Zhang
<strong>API</strong> RP-575 PRACTICE QUESTIONS<br />
Q1. The simplest type of atmospheric storage tank is the:<br />
a. umbrella-roof tank.<br />
b. dome-roof tank.<br />
c. cone-roof tank.<br />
d. flat-roof tank.<br />
ANS: C<br />
Q2. The simplest type of floating-roof tank is the:<br />
a. annular-pontoon type.<br />
b. pan type.<br />
c. double-deck type.<br />
d. internal plastic sandwich panel roof type.<br />
ANS: B<br />
Charlie Chong/ Fion Zhang
Q3. Cone-roof tanks can reach ________ in diameter and ______ in height.<br />
a. 300 feet, 64 feet<br />
b. 400 meters, 70 meters<br />
c. 300 yards, 64 yards<br />
d. 400 mm, 70 mm<br />
ANS: A<br />
Q4. Large diameter cone-roof tanks usually are supported by:<br />
a. external structural members.<br />
b. internal structural members.<br />
c. internal floats or pontoons.<br />
d. external floats or pontoons.<br />
ANS: B<br />
Charlie Chong/ Fion Zhang
Q5. Another type of tank is one with a fixed roof plus an interior pan floating<br />
roof. The fixed roof is usually a _______.<br />
a. pyramid<br />
b. cone<br />
c. cylinder<br />
d. dome<br />
ANS: B<br />
Q6. Atmospheric storage tanks are generally inspected to determine the:<br />
a. amount of product they will hold and the maximum fill height.<br />
b. physical condition, rate of corrosion, and cause of deterioration<br />
c. type product, amount of product, and the rate of filling.<br />
d. condition of the bottom, type product, and the type of roof.<br />
ANS: B<br />
Charlie Chong/ Fion Zhang
Q7. The prime cause of deterioration of steel storage tanks is:<br />
a. product.<br />
b. corrosion.<br />
c. water.<br />
d. air.<br />
ANS: B<br />
Q8. If you find cinders present in the pad of a tank, which of the following<br />
would you suspect?<br />
a. It is a possible source of corrosion if sulfur compounds and moisture is<br />
present.<br />
b. It makes a very good foundation for a tank and settlement should not be a<br />
problem.<br />
c. It protects the tank bottom from corrosion and no external problems should<br />
exist.<br />
d. It is a possible source of electrolytic corrosion and should be investigated.<br />
ANS:A<br />
Charlie Chong/ Fion Zhang
Q9. During the inspection of a tank, a section of the bottom is removed.<br />
Several globs of clay is found in the pad. Which of the following would you<br />
suspect?<br />
a. Clay indicates a stable pad. The contact areas on the bottom will be free of<br />
corrosion.<br />
b. Sulfur corrosion could be present. The underside of the bottom must be<br />
checked.<br />
c. Pitting corrosion could exist at each point of contact (electrolytic corrosion).<br />
d. Clay stops water contact with the bottom. The contact areas will be<br />
corrosion free.<br />
ANS: C<br />
Q10. A tank that is supported above grade has some of its bottom exposed,<br />
i.e., saddle supports on a horizontal tank. As an inspector, what would you<br />
do to prevent possible bottom corrosion?<br />
a. The area between the saddles and tank should be inspected every 5 years<br />
b. A steel plate should be placed between the saddle or pier and the tank<br />
bottom.<br />
c. The tank bottom and the piers and saddles should be painted<br />
d. The saddles or piers should be sealed to prevent moisture accumulation &<br />
corrosion. ANS: D<br />
Charlie Chong/ Fion Zhang
Q11. During an external inspection of a tank, the inspector notices that the<br />
soil is at or just above the grade line of the tank on the south side. What<br />
should he do?<br />
a. Require removal of soil & check the tank shell in the area for corrosion.<br />
b. Nothing is required unless the soil is found on the north side of the tank.<br />
c. Write an item to check the area when the tank is next internally inspected.<br />
d. Remove soil in selected spots and check for corrosion. If none found,<br />
ignore.<br />
ANS: A<br />
Q12. A riveted tank in a humid environment is located adjacent to a series of<br />
heaters that burn high sulfur fuel gas. The prevailing winds cause the heater<br />
gases to contact the tank often. What type of problem would you suspect?<br />
a. Dezincification.<br />
b. Atmospheric corrosion-damage to coating.<br />
c. Stress corrosion cracking.<br />
d. Intergranular corrosion.<br />
ANS: B<br />
Charlie Chong/ Fion Zhang
Q13. The occurrence of internal corrosion of a storage tank depends on the<br />
________ of the tank and the __________ of construction.<br />
a. treatment, time<br />
b. test water, date<br />
c. contents, material<br />
d. inspection, mode<br />
ANS: C<br />
Q14. Internal corrosion of an atmospheric storage tank in the vapor zone is<br />
usually caused by:<br />
a. hydrogen sulfide vapor, water vapor, or oxygen, or a combination of all<br />
three.<br />
b. hydrogen vapor, nitrogen, or oil vapor, or a combination of all three.<br />
c. oil vapor, helium vapor, nitrogen vapor, or a combination of all three.<br />
d. water, nitrogen vapor, oil vapor, or a combination of all three.<br />
ANS: A<br />
Charlie Chong/ Fion Zhang
Q15. Internal corrosion of an atmospheric storage tank in the area covered by<br />
stored liquid, corrosion is most commonly caused by:<br />
a. hydrogen sulfide vapor, water vapor, or oxygen, or a combination of all<br />
three.<br />
b. acid salts, hydrogen sulfide, or other sulfur compounds.<br />
c. water, hydrogen, nitrogen, or a combination of all three.<br />
d. hydrogen, helium, nitrogen, or water.<br />
ANS: B<br />
Q16. While internally inspecting the shell of an atmospheric storage tank the<br />
inspector shines his flashlight approximately parallel with the shell surface.<br />
He notices shadows which he at first thinks are pits. When he checks closer,<br />
he finds that they are small blisters. What type of attack would cause the<br />
blisters?<br />
a. Hydrogen blistering.<br />
b. Caustic embrittlement.<br />
c. Graphitic corrosion.<br />
d. Electrolytic corrosion.<br />
ANS: A<br />
Charlie Chong/ Fion Zhang
Q17. During an external inspection of an atmospheric storage tank, an<br />
inspector finds an indication of a leak in the shell. What is the most likely sign<br />
that he found?<br />
a. A hissing sound that indicated a leak.<br />
b. A slight buckle or bulge in the tank shell.<br />
c. Discoloration or absence of the paint in area below leak.<br />
d. A thin reading of his ultrasonic thickness gage.<br />
ANS: C<br />
Q18. Where is one of the most likely points and one of the potentially most<br />
critical points for a crack to occur in a large storage tank?<br />
a. The horizontal weld of the first shell course to the second shell course.<br />
b. The lower shell nozzle welds.<br />
c. The lower shell to sketch plate or annular plate weld.<br />
d. The bottom door sheet weld.<br />
ANS: C<br />
Charlie Chong/ Fion Zhang
Q19. What type of failure is characterized by sudden loss of tank contents<br />
and extensive damage to equipment in the vicinity of the tank (little or no loss<br />
of metal thickness throughout the tank.<br />
a. Atmospheric corrosion.<br />
b. Graphitic corrosion.<br />
c. Brittle Fracture.<br />
d. Acidic attack.<br />
ANS: C<br />
Q20. What is of prime importance in controlling the settlement of an<br />
aboveground storage tank?<br />
a. Use floor plates at least 5/8” thick.<br />
b. Hire a reputable contractor.<br />
c. Elevations of the tank bottom should be taken before and after tank<br />
construction.<br />
d. A proper foundation must be provided.<br />
ANS: D<br />
Charlie Chong/ Fion Zhang
Q21. What would be the expected problem encountered with a water draw off<br />
on a floating roof tank if an elbow or the pipe develops a leak?<br />
a. The check valve in the water draw off line will prevent loss of product.<br />
b. No problem will occur if the outlet valve is shut off.<br />
c. The leak will allow product to escape or possible water to leak into the<br />
product.<br />
d. The leak will contaminate the product in the tank.<br />
ANS: C<br />
Q22. If a pan type floating roof has a plugged water draw off, what could be<br />
the most likely consequence?<br />
a. The product in the tank may be contaminated.<br />
b. The roof could turn and possibly have its movements restricted.<br />
c. The roof could sink during or after a rain.<br />
d. The tank’s floats could leak.<br />
ANS: C<br />
Charlie Chong/ Fion Zhang
Q23. After all required permits are obtained for an internal inspection of a tank,<br />
what are the first checks an inspector makes prior to entering?<br />
a. Check the pressure vacuum valves on the tanks roof.<br />
b. Make sure the water draw off valve is open.<br />
c. Check for signs of leaks on the tanks exterior.<br />
d. Make a visual inspection of overhead parts and roof before entering.<br />
ANS: D<br />
Q24. Who should be informed when personnel are working on the inside of a<br />
tank?<br />
a. The fire department should be notified.<br />
b. The jurisdiction should be informed.<br />
c. Personnel working in the vicinity of the tank.<br />
d. The plant manager should be informed.<br />
ANS: C<br />
Charlie Chong/ Fion Zhang
Q25. Prior to conducting internal or external inspections, the inspector should:<br />
a. notify the jurisdiction that the tank is to be inspected.<br />
b. thoroughly review the inspection records of the tank.<br />
c. check with the maintenance personnel to make sure they are ready to work<br />
the tank.<br />
d. call for the safety department to check that the correct blinds are available.<br />
ANS: B<br />
Q26. The condition of anchor bolts can sometimes be determined by visual<br />
inspection. Name three other methods of assessing the condition of anchor<br />
bolts.<br />
a. Wire brushing, abrasive blasting, breaking out concrets.<br />
b. AE, ET, and VT<br />
c. PT, MT, and RT.<br />
d. Hammer test, remove nuts, and UT.<br />
ANS: D<br />
Charlie Chong/ Fion Zhang
Q27. If an inspector finds a low area in a platform that holds water. What is<br />
the quickest solution to this problem?<br />
a. Renew the floor plate.<br />
b. Drill a small drain hole in the area.<br />
c. Put a protective coating in the area.<br />
d. Jack-up the low spot.<br />
ANS: B<br />
Q28. All types of foundations should be checked for:<br />
a. composition.<br />
b. settlement with a surveyor’s level.<br />
c. evidence of overheating.<br />
d. temperature.<br />
ANS: B<br />
Charlie Chong/ Fion Zhang
Q29. Name three ways to check for wood rot of any wooden supports for<br />
small tanks or wooden walkways etc.<br />
a. hammer, scraper, and ice pick.<br />
b. calipers, rules, and magnifying glass.<br />
c. camera, pit gage, and square.<br />
d. straightedge, square, and steel rule.<br />
ANS: A<br />
Q30. An inspector is checking the tank nozzles on the outside of a tank. He<br />
notices a pipe off one of the<br />
nozzles enters the ground directly adjacent to the tank. What should he do?<br />
a. Call the operation supervisor and tell him there may be a problem.<br />
b. Nothing. <strong>API</strong> 653 does not cover this area.<br />
c. Remove soil from point where pipe enters the ground. Check for external<br />
corrosion.<br />
d. Call for a <strong>API</strong> 570 inspector to check the pipe.<br />
ANS: C<br />
Charlie Chong/ Fion Zhang
Q31. Ground connections on tanks should be visually checked for corrosion<br />
at the point where they enter the earth and at the mechanical connection to<br />
the tank. If any doubt exists about the condition of the ground, its resistance<br />
can be checked. The total resistance from the tank to earth should not exceed<br />
approximately ________.<br />
a. 25 volts<br />
b. 25 amps<br />
c. 25 watts<br />
d. 25 ohms<br />
ANS: D<br />
Q32. Paint blisters (film coating blisters) most often occurs:<br />
a. on the roof and on the side of the tank receiving the most sunlight.<br />
b. on the north side of the tank.<br />
c. on the windward side of the tank.<br />
d. on the leeward side of the tank.<br />
ANS:A<br />
Charlie Chong/ Fion Zhang
Q33. When checking an insulated tank, careful inspection should be made<br />
around all nozzles and around the saddles of horizontal tanks. A few samples<br />
may also be removed for checking. These samples should be taken from:<br />
a. the leeward side of the tank.<br />
b. the north side of the tank.<br />
c. the roof of the tank.<br />
d. the shaded side of the tank.<br />
ANS: D<br />
Q34. If caustic is stored in a tank, the tank should be checked for evidence of<br />
damage from:<br />
a. Possible cracks caused by caustic embrittlement.<br />
b. Blisters from hydrogen attack.<br />
c. Acidic concentration cell corrosion (or crevice corrosion).<br />
d. Dezincification.<br />
ANS: A<br />
Charlie Chong/ Fion Zhang
Q35. A storage tank is used to store a product that must be kept warm (150+<br />
degrees F). The product has a high concentration of caustic and stress<br />
corrosion cracking is suspected because of caustic embrittlement. Where<br />
would you look for cracks?<br />
a. Check the tank manways and door sheets.<br />
b. Check the upper shell welds because the warm product will rise.<br />
c. Check around connections for the internal heating units or coils.<br />
d. Check around the tank drawoff nozzles.<br />
ANS: C<br />
Q36. If a fixed cone roof of a tank in full (no pumping in or out) is suspected of<br />
being extremely thin, what precaution should an inspector take to facilitate his<br />
inspection (beside using safety belts with attachments).<br />
a. Use a life preserver in case the roof gives way.<br />
b. Use planks (or plywood sheeting) to span at least two roof rafters.<br />
c. Condemn the roof without inspecting.<br />
d. Call for maintenance to furnish a crane with a 150 feet boom.<br />
ANS: B<br />
Charlie Chong/ Fion Zhang
Q37. Flame arrester should be opened and the screens or grids should be<br />
visually inspected for cleanliness and corrosion at what interval?<br />
a. The interval for inspection should be no longer than 12 months.<br />
b. The interval for inspection should be appropriate for each case.<br />
c. The interval for inspection should be every 6 months.<br />
d. The interval for inspection should be every 18 months.<br />
ANS: B<br />
Q38. What occasionally plugs tank flame arrestors (and pressure vacuum<br />
valves).<br />
a. Bees and mud daubers.<br />
b. Tank contents.<br />
c. Condensed heavy vapors.<br />
d. Lunch bags from workers.<br />
ANS: A<br />
Charlie Chong/ Fion Zhang
Q39. What are common problems found with pressure-vacuum vents and<br />
breather valves?<br />
a. Corrosion of the tank roof and nozzle that the PV vents and breathers are<br />
attached.<br />
b. Plugging of the discharge side screen and build up of solids on the pallets.<br />
c. Painters failure to uncover valves after painting the tank roof.<br />
d. Disabled PV vents and breathers due to internal pressure in the tank.<br />
ANS: B<br />
Q40. Ultrasonic thickness measurements is the usually method for<br />
determining the thickness of a tank roof. What is an alternate method?<br />
a. Magnetic <strong>Part</strong>icle Testing.<br />
b. Hammer Testing.<br />
c. Dye Penetrant testing.<br />
d. Eddy Current Testing.<br />
ANS: B<br />
Charlie Chong/ Fion Zhang
Q41. Roof drains on floating roof tanks (including the joints) are tested for<br />
tightness by pressure testing with water. Which of the tests listed below is<br />
recommended by <strong>API</strong> RP 575?<br />
a. First test at 30 psig for 1/2 hour, then drop to 5 psig for a 1/2 hour.<br />
b. First test at 225 psig for 1/2 hour, then drop to 150 psig for a 1/2 hour.<br />
c. First test at 150 psig for 1/2 hour, then drop to 100 psig for a 1/2 hour.<br />
d. First test at 10 psig for 1/2 hour, then drop to 5 psig for a 1/2 hour.<br />
ANS: A<br />
Q42. Name three locations in which internal corrosion will most likely be<br />
found in a tank.<br />
a. Half way up the tank, northside of the tank, and center of tank bottom.<br />
b. Pressure/vacuum vents, roof manways, and roof rafters.<br />
c. Tank heaters, door sheets, and draw off nozzles.<br />
d. Vapor space, the liquid-level line, and bottom.<br />
ANS: D<br />
Charlie Chong/ Fion Zhang
Q43. Broken seal hangers on floating roof tanks can cause what type problem?<br />
a. An increase in corrosion in the adjacent areas.<br />
b. No problem other than partial loss of sealing.<br />
c. Grooving or abrasive wear on the tank shell.<br />
d. A possible crack in the tank shell.<br />
ANS: C<br />
Q44. What type of problem would you expect to find around a riveted seam of<br />
a tank bottom that has an agitator near it and weak acid in the product.<br />
a. Caustic Embrittlement.<br />
b. Hydrogen Blistering.<br />
c. Corrosion-Erosion<br />
d. Graphic Corrosion.<br />
ANS: C<br />
Charlie Chong/ Fion Zhang
Q45. When statistical methods are used for assessing the probable condition<br />
of a tank bottom, what controls the number of UT measurement taken.<br />
a. The time the tank will be out of service.<br />
b. The size of the tank and the degree of underside corrosion found.<br />
c. The surface condition of the tank bottom plates and the pattern of readings.<br />
d. The amount of hammer testing and the experience of the operator.<br />
ANS: B<br />
Q46. What size coupon is recommended for removal from a tank bottom to<br />
check for underside corrosion?<br />
a. Twenty four inch square.<br />
b. At least 12” in the least dimension.<br />
c. Six inch square.<br />
d. Rectangle Eight inches by four inches.<br />
ANS: B<br />
Charlie Chong/ Fion Zhang
Q47. Some tanks may have a bottom angle between the shell and the bottom.<br />
Where should you check for cracks?<br />
a. The shell adjacent to any welded butt joints.<br />
b. The floor at the toe of the angle adjacent to floor joints.<br />
c. The corner of the angle.<br />
d. The angle near any large manway or nozzle.<br />
ANS: A<br />
Q48. A method for checking for weld leaks in the bottom and in the shell is:<br />
a. Ultrasonic sound instruments.<br />
b. Use of a vacuum box.<br />
c. Hammer testing.<br />
d. Magnetic particle testing.<br />
ANS: B<br />
Charlie Chong/ Fion Zhang
Q49. When a temporary dam or seal is built around the outside of a tank; the<br />
internal joints are coated with a soap solution; and air is injected under the<br />
bottom, what is the maximum air pressure used?<br />
a. 3 inches of water<br />
b. 3 psi<br />
c. 3 psf<br />
d. 3 pascals<br />
ANS:A<br />
Q50. What is the test medium ordinarily used normal to test atmospheric<br />
storage tanks?<br />
a. air<br />
b. heavy water<br />
c. product<br />
d. Water<br />
ANS: D<br />
Charlie Chong/ Fion Zhang
RP-575 ANSWER KEY<br />
Charlie Chong/ Fion Zhang
<strong>API</strong>-2015 PRACTICE QUESTIONS<br />
Q1. <strong>API</strong> Standard 2015 provides safety practices for preparing, emptying,<br />
isolating, ventilating, atmospheric testing, cleaning, entry, hot work, and<br />
recommissioning activities in, on, and around atmospheric and low-pressure<br />
_____ that have contained flammable, combustible, or toxic materials.<br />
a. aboveground storage bins<br />
b. belowground storage tanks<br />
c. belowground storage vessels<br />
d. aboveground storage tanks<br />
ANS: D<br />
Q2. <strong>API</strong> Standard 2015 applies to_________ tanks used in all sectors of the<br />
petroleum and petrochemical industry, including crude oil and gas production,<br />
refineries, petrochemical plants, and terminals.<br />
a. moveable<br />
b. stationary<br />
c. transportable<br />
d. high-pressure<br />
ANS: B<br />
Charlie Chong/ Fion Zhang
Q3. <strong>API</strong> Standard 2015 does not function as a substitute for review of<br />
applicable regulations or __________ guidelines.<br />
a. Company<br />
b. OSHA<br />
c. <strong>API</strong><br />
d. State or Federal<br />
ANS: A<br />
Q4. Blanking or blinding means the_______________ of a pipe, line, or duct<br />
by the fastening of a solid plate that completely covers the bore and is<br />
capable of withstanding the maximum pressure of the closure with no leakage<br />
beyond the plate.<br />
a. closure<br />
b. partial closure<br />
c. limiting access<br />
d. absolute closure<br />
ANS: D<br />
Charlie Chong/ Fion Zhang
Q5. One definition of a confined space is a space that:<br />
a. has limited or restricted means for entry or exit.<br />
b. is small enough that an employee can bodily enter.<br />
c. is designed for continuous employee occupancy.<br />
d. is configured so that an employee cannot bodily enter.<br />
ANS: A<br />
Q6. Entry means the action by which a person passes through an opening<br />
into a permit-required confined space. An entry is considered to have<br />
occurred when:<br />
a. the entrant is on the platform outside the manway of a vessel.<br />
b. the operator signs the safework permit.<br />
c. a part of the entrants body breaks the plane<br />
d. the entrant signs the safework permit.<br />
ANS: C<br />
Charlie Chong/ Fion Zhang
Q7. External floating-roof tanks are cylindrical vessels:<br />
a. that have both a fixed roof over the top of the tank and a floating deck that<br />
rests on the liquid stock surface.<br />
b. that have a roof that floats on the surface of the liquid stock and does not<br />
have a fixed roof over the top of the tank.<br />
c. that have bottom that floats on the surface of the liquid stock and does not<br />
have a fixed roof over the top of the tank.<br />
d. that have a cone or hemispherical top and a floating deck that rests on the<br />
liquid stock surface.<br />
ANS: B<br />
Q8. Oxygen deficient atmosphere means an atmosphere containing less than<br />
_____ oxygen by volume.<br />
a. 23.5%<br />
b. 19.5%<br />
c. 16.5%<br />
d. 12.5%<br />
ANS: B<br />
Charlie Chong/ Fion Zhang
Q9. Oxygen enriched atmosphere means an atmosphere containing more<br />
than _____ oxygen by volume.<br />
a. 25.5%<br />
b. 23.5%<br />
c. 19.5%<br />
d. 16.5%<br />
ANS: B<br />
Q10. Pyrophoric designates a material that may:<br />
a. be toxic when exposed to air.<br />
b. spontaneously ignite upon exposure to air.<br />
c. produce sour vapors upon exposure to air.<br />
d. spontaneously produce hydrogen fluoride.<br />
ANS: B<br />
Charlie Chong/ Fion Zhang
Q11. Sour refers to the presence of:<br />
a. hydrogen sulfide in petroleum products.<br />
b. hydrogen fluoride in petroleum products.<br />
c. acetic acid in petroleum products.<br />
d. hydrocarbons in petroleum products.<br />
ANS: A<br />
Q12. Vapor freeing means ventilation or purging to remove:<br />
a. all vapor from the tank atmosphere.<br />
b. flammable and/or toxic materials from the tank atmosphere.<br />
c. oxygen and/or nitrogen from the tank atmosphere.<br />
d. water vapor and/or nitrogen from the tank atmosphere.<br />
ANS: B<br />
Charlie Chong/ Fion Zhang
Q13. A person or persons designated to perform and/or supervise tasks or<br />
activities in accordance with the employer’s administrative controls for<br />
decommissioning through recomissioning tanks is a:<br />
a. Contractor.<br />
b. Operator.<br />
c. Qualified person.<br />
d. Safety guard.<br />
ANS: C<br />
Q14. All tanks that have contained petroleum or petroleum products may<br />
present one or more of the following hazards. Which hazard listed below does<br />
not belong?<br />
a. Fires and explosions.<br />
b. Oxygen deficiency or enrichment.<br />
c. Physical and other hazards.<br />
d. Working at temperatures 40 to 60⁰F.<br />
ANS: D<br />
Charlie Chong/ Fion Zhang
Q15. Give an example of possibly one of the most toxic and flammable gas<br />
that occurs in the production, storage, and refining of sour crude oil and crude<br />
oil fractions:<br />
a. hydrogen gas.<br />
b. hydrogen sulfide gas.<br />
c. nitrogen gas.<br />
d. sulfur dioxide gas.<br />
ANS: B<br />
Q16. Hazards encountered while entering and cleaning tanks can be<br />
controlled by __________ the job in accordance with administrative controls.<br />
a. explaining<br />
b. contracting<br />
c. configuring<br />
d. pre-planning<br />
ANS: D<br />
Charlie Chong/ Fion Zhang
Q17. One of the most dangerous ignition sources encountered while cleaning<br />
and gas freeing is pyrophoric deposits. This material is dangerous because it:<br />
a. will spontaneously ignite when exposed to oxygen.<br />
b. is very poisonous when it is dry.<br />
c. is inflammable when it is wet with water.<br />
d. produces gas when it is wet with water.<br />
ANS: A<br />
Q18. Name three general analyzers or indicators that are used as<br />
atmospheric testing equipment.<br />
a. Cellulose and H2O analyzers, and ozone indicators.<br />
b. Oxygen and Flammable vapor analyzers and toxic substance indicators.<br />
c. Carbon and iron pyrite analyzers and odor indicators.<br />
d. Carbon dioxide and odor analyzers and humidity indicators.<br />
ANS: B<br />
Charlie Chong/ Fion Zhang<br />
http://alfin-corner.blogspot.my/2012/07/pyrophoric-ignition-hazards-in-typical.html
Q19. Name the three types of tank entry.<br />
a. Entry with Special Care, with Caution, and without Prejudice.<br />
b. Entry with care, with Caution, and without Restrictions.<br />
c. Entry with Special Precautions, with Restrictions and without Restrictions.<br />
d. Entry with Prejudice, with Caution, and without Prejudice.<br />
ANS: C<br />
Q20. Why would a person entering a tank need to wear light colored clothing?<br />
a. It enhances visibility and shows contamination,<br />
b. It is generally cooler, and when washed, it is easy to tell when it is clean.<br />
c. It is not likely to produce static electricity or need as much decontamination.<br />
d. It contributes to cleanliness and it also serves as identification.<br />
ANS: A<br />
Charlie Chong/ Fion Zhang
Q21. When respirators are required, they are to be provided by the:<br />
a. the inspector.<br />
b. the employer.<br />
c. the contractor.<br />
d. the worker.<br />
ANS: B<br />
Q22. How often should a respirator be checked to see that it fits properly.<br />
a. periodically<br />
b. weekly<br />
c. each time it is put on<br />
d. Daily<br />
ANS: C<br />
Charlie Chong/ Fion Zhang
Q23. Before entering a tank, a written entry permit shall be issued by a<br />
qualified person and posted at the:<br />
a. tank name plate.<br />
b. job site entrance.<br />
c. tank stairway.<br />
d. tank entry point.<br />
ANS: D<br />
Q24. If a tank is entered while under Special Precautions:<br />
a. the employer is required to be present.<br />
b. a representative of OSHA shall be consulted prior to entry.<br />
c. at least one attendant or safety guard shall be provided.<br />
d. one representative from the organizations safety group shall be present.<br />
ANS: C<br />
Charlie Chong/ Fion Zhang
Q25. Which of the operations or equipment below represents the most<br />
potential ignition source?<br />
a. explosion proof electric motor.<br />
b. dry cell flashlight.<br />
c. abrasive blasting.<br />
d. use of a brass hammer.<br />
ANS: C<br />
Q26. If a test of the tank’s atmosphere reveals it is in excess of 10% of the<br />
lower flammable limit, this tells you that:<br />
a. ventilation should be increased.<br />
b. it is safe to continue work in the tank.<br />
c. a test for toxic vapors should be performed.<br />
d. a test for oxygen should be performed.<br />
ANS: A<br />
Charlie Chong/ Fion Zhang
Q27. Surfaces of a tank that have been in contact with leaded gasoline shall<br />
be scraped down to bare metal over any area of at least ______ on each side<br />
of the area that might be heated.<br />
a. 12 centimeters<br />
b. 12 inches<br />
c. 6 inches<br />
d. 6 centimeters<br />
ANS: B<br />
Q28. Where hot work is to be performed, what equipment is required to be<br />
present?<br />
a. a fire extinguisher and sand bucket<br />
b. a fire extinguisher and/or sand bucket.<br />
c. a pressured fire hose and wet burlap bag<br />
d. a fire extinguisher and/or pressured fire hose.<br />
ANS: D<br />
Charlie Chong/ Fion Zhang
Q29. When filling a tank after it has been out of service, the flow rate into the<br />
tank shall be reduced to a rate that will minimize the creation of static<br />
electricity while the outlet of the fill line is exposed. This rate, or velocity<br />
varies depending on the product but is usually considered to be around<br />
_______ for steel pipe.<br />
a. 3 inches per second<br />
b. 6 centimeters per second<br />
c. 3 feet per second<br />
d. 8 feet per second<br />
ANS: C<br />
Q30. A fire, and possibly an explosion, may occur when the proper<br />
proportions of flammable vapors and air are exposed to an ignition source.<br />
The three elements necessary for a fire are:<br />
a. Air(oxygen), Fuel vapor, and Fire.<br />
b. Fuel vapor, Air(oxygen), and Ignition.<br />
c. Ignition, Nitrogen vapor, and Air(oxygen)<br />
d. Fire, H 2 O vapor, and Air(oxygen).<br />
ANS: B<br />
Charlie Chong/ Fion Zhang
Q31. Name a substance that is toxic, flammable and in high concentrations<br />
paralyzes the sense of smell.<br />
a. Leaded Gasoline.<br />
b. Hydrogen Sulfide.<br />
c. Methane.<br />
d. Propane.<br />
ANS: B<br />
Q32. What should you consult to find hazard identification and appropriate<br />
precautions to be taken for a designated material?<br />
a. Company information.<br />
b. Contractor information.<br />
c. MSDS sheets.<br />
d. Tank Inspector.<br />
ANS: C<br />
Charlie Chong/ Fion Zhang
Q33. When wearing semi-impermeable or impermeable clothing, workers can<br />
encounter heat stress when working in a tank with temperatures as low as<br />
____ degrees F.<br />
a. 30<br />
b. 40<br />
c. 50<br />
d. 70<br />
ANS: D<br />
Q34. One means of vapor freeing a tank is to use an inert gas purge. If this<br />
method is used:<br />
a. the tank is safe to enter after the purge gas is shut off.<br />
b. additional precautions are necessary to remove the inert gas before entry.<br />
c. unexpected sources of ignition may be left unless the inert gas is removed.<br />
d. electrical sources must be carefully monitored to prevent inert gas ignition.<br />
ANS: B<br />
Charlie Chong/ Fion Zhang
Q35. While a tank is open and being ventilated and is being cleaned, all<br />
personnel should leave the site if:<br />
a. if water is sprayed on pyrophoric deposits.<br />
b. the only artificial light available is a dry cell flash light.<br />
c. fog restricts visibility.<br />
d. a lightning storm occurs.<br />
ANS: D<br />
Charlie Chong/ Fion Zhang
Lightning Storm<br />
Charlie Chong/ Fion Zhang
Lightning Storm<br />
Charlie Chong/ Fion Zhang
Lightning Storm<br />
Charlie Chong/ Fion Zhang
OPEN BOOK<br />
Q1. What is the flammable range of Hydrogen Sulfide?<br />
a. 4 to 75% b. 4 to 46%<br />
c. 5 to 15% d. 2 to 9%<br />
ANS:<br />
Q2. What is the flammable range of gasoline vapor in air?<br />
a. 1 to 4% b. 1 to 5%<br />
c. 1 to 7% d. 2 to 8%<br />
ANS:<br />
Q3. If the range of gasoline vapor in the air is between 10% and 50% it is<br />
considered to be:<br />
a. saturated. b. lean.<br />
c. rich. d. moderate.<br />
ANS:<br />
Charlie Chong/ Fion Zhang
<strong>API</strong>-2015 PRACTICE QUESTION ANSWER KEY<br />
Charlie Chong/ Fion Zhang
<strong>API</strong>-2207 PRACTICE QUESTIONS<br />
<strong>API</strong> publ 2207- Preparing Tank Bottoms for Hot<br />
Q1. An act or operation that can produce a spark or flame hot enough to<br />
ignite flammable vapors is called:<br />
a. dangerous work.<br />
b. hot work.<br />
c. safe work.<br />
d. hazardous work.<br />
ANS: B<br />
Q2. Tanks that have contained flammable or combustible liquids, regardless<br />
of their age and type of construction, must be considered unsafe until<br />
approved by:<br />
a. tank inspectors.<br />
b. safety inspections.<br />
c. operation personnel.<br />
d. jurisdictional representatives.<br />
ANS:B<br />
Charlie Chong/ Fion Zhang
Q3. Who authorizes the hot work and should designate the necessary safety<br />
precautions?<br />
a. A trained and incompetent experienced person.<br />
b. A competently trained or inexperienced person.<br />
c. A competent engineer from the maintenance organization.<br />
d. A competently trained or experienced person.<br />
ANS: D<br />
Q4. Which of the items listed below are examples of adequate first aid and<br />
fire-fighting equipment that should be available and ready for instant use?<br />
a. Fire-extinguishers and water hose lines.<br />
b. Oxygen analyzers.<br />
c. Flammable vapor analyzers.<br />
d. A tank designer or inspector.<br />
ANS: A<br />
Charlie Chong/ Fion Zhang
Q5. Work permits for the job, tank entry and hot work must be:<br />
a. signed and recorded before the work is started.<br />
b. designed and filled out before the work is started.<br />
c. properly signed and issued before the work is started.<br />
d. signed and published for three days before the work is started.<br />
ANS: C<br />
Q6. What piece of equipment should be in operation at all times during entry<br />
and hot work?<br />
a. A shovel large enough to handle debris inside the tank.<br />
b. A pick-up truck for transportation of tools.<br />
c. A tremor detector to insure warning in case the tank moves unusually.<br />
d. An air mover of large enough capacity to provide fresh air inside the tank.<br />
ANS: D<br />
Charlie Chong/ Fion Zhang
Q7. Lines to and from the tank that have been disconnected, blanked off, or<br />
otherwise isolated should not be ____________ during entry and hot work.<br />
a. disturbed<br />
b. visually inspected<br />
c. sketched by pipe detailers<br />
d. Systematized<br />
ANS: A<br />
Q8. In order to weld on a tank that has contained leaded gasoline, the area<br />
12 inches on each side of the location to be welded must be scraped down to<br />
bare metal. As an alternate to scraping down to bare metal:<br />
a. the welders should use air- supplied respiratory equipment while welding.<br />
b. the welder should wear a dust respirator while welding.<br />
c. the welder must drink milk and be limited to a working time of 2 hours.<br />
d. the welder must be supplied with calcium tablets and be allowed 15 minute<br />
breaks every hour.<br />
ANS: A<br />
Charlie Chong/ Fion Zhang
Q9. Where do you attach grounding leads from a welding machine on a tank<br />
when hot work is to be performed ?<br />
a. Attach the leads directly to any surface on the tank shell.<br />
b. Attach the leads to any tank pipe line near the tank.<br />
c. Attach the leads directly to a bared surface on the tank shell.<br />
d. Attach the leads to the frame of the welding machine.<br />
ANS: C<br />
Q10. While hot work is in progress, all work areas must be monitored for<br />
_________ and combustible and toxic atmospheres.<br />
a. carbon monoxide excesses<br />
b. presence of pyrophoric materials<br />
c. presence of coliform organisms<br />
d. oxygen deficiency<br />
ANS: D<br />
Charlie Chong/ Fion Zhang
Q11. Appropriately sized openings are sometimes made in the tank bottom by<br />
cold cutting or by drilling holes in each area where hot work is to be<br />
performed. What purpose do these openings have?<br />
a. These openings obscure inspection and confine the gas under the tank<br />
bottom.<br />
b. These openings facilitate visual inspection and help free gas from beneath<br />
the tank bottom.<br />
c. These openings dictate the type inspection and exclude of the gas from<br />
the area.<br />
d. These openings preclude inspection and incorporate gas from the area.<br />
ANS:B<br />
Charlie Chong/ Fion Zhang
Q12. In order to make small repairs, usually involving welding of corrosion<br />
pits and patches or other localized jobs, the following procedure is used: Tap<br />
a 1/2” hole adjacent to the repair area. Connect a supply of inert gas to the<br />
tap using metal tubing. Use a control valve with a flow indicator to prevent<br />
over pressuring of the tank bottom. Establish a flow of inert gas under the<br />
tank bottom in the vicinity of the welding to sweep away the flammable vapors<br />
(or dilute them sufficiently). Monitor the area to assure that the oxygen<br />
content remains between 19.5 and 22.5 percent. When welding is complete,<br />
plug the hold with a tapered pin or other device and promptly back weld the<br />
pin. Which of the gases listed below is inert?<br />
a. hydrogen<br />
b. oxygen<br />
c. hydrogen sulfide<br />
d. carbon dioxide<br />
ANS: D<br />
Charlie Chong/ Fion Zhang
Q13. When repairs involving hot work include most of the tank bottom, it may<br />
be desirable to displace the flammable liquids beneath the tank by:<br />
a. inert gas flooding.<br />
b. bicarbonate solution flooding.<br />
c. water flooding.<br />
d. pumping in fire retardent foam.<br />
ANS: C<br />
Q14. Repairs around the perimeter of a tank may be made safely by<br />
excavating under the edge of the tank a minimum of _________ beyond the<br />
point of any hot-work area. Monitor area continuously to assure the oxygen<br />
content and seal off all openings between the floor plates and the tank<br />
foundation by packing them with mud. Use a vapor indicator to check the<br />
excavations and the seals. Continuously monitor the excavations and the<br />
surrounding area for airborne chemicals or gas. Ventilate the excavation if<br />
necessary.<br />
a. 30 centimeters b. 28 centimeters<br />
c. 26 centimeters d. 21 centimeters<br />
ANS: A<br />
Charlie Chong/ Fion Zhang
Q15. What is the depth of sand recommended by <strong>API</strong> Publication 2207 to be<br />
placed over an existing tank floor when a double bottom is to be installed?<br />
a. 4 centimeters<br />
b. 5 centimeters<br />
c. 10 centimeters (4”)<br />
d. 13 centimeters<br />
ANS: C<br />
Q16. When using a hand or air operated tool to cold cut a tank bottom, what<br />
should be applied continuously to the cutting edge of the tool and why should<br />
it be applied?<br />
a. A lubricant should be applied to aid the cutting of the steel.<br />
b. A heating agent should be used to soften the steel and facilitate cutting.<br />
c. A freezing agent should be applied to reduce the heat of friction.<br />
d. A coolant should be applied to reduce the heat of friction.<br />
ANS: D<br />
Charlie Chong/ Fion Zhang
2207 PRACTICE QUESTIONS ANSWER KEY<br />
Charlie Chong/ Fion Zhang
ASME SECTION V - NDE - PRACTICE QUESTIONS<br />
Q1. The ______is responsibility for examination equipment calibration<br />
records.<br />
1. manufacturer<br />
2. NDE technician calibrates his own equipment and<br />
3. company that manufactures the NDE equipment<br />
4. Authorized Inspector<br />
ANS: 1<br />
Q2. At least _______copy(ies) of an NDE procedure must be available to the<br />
Manufacturers Nondestructive Examination Personnel at the work site.<br />
1. two<br />
2. one<br />
3. none<br />
4. there is no requirement<br />
ANS: 2<br />
Charlie Chong/ Fion Zhang
Q3. The difference between an inspection and an examination per Section V<br />
of the ASME Code is:<br />
1. Inspections are non NDE functions, other Q.C. functions are examinations<br />
2. “examinations” are performed by NDE personnel<br />
3. “inspections” are performed by the Authorized Inspector<br />
4. 2 & 3 above<br />
ANS: 4<br />
Q4. How must all Nondestructive Examination Personnel be qualified?<br />
1. per the manufacturer’s PQR’s<br />
2. per the requirements of the referencing code or standard<br />
3. The AI will specify the requirements for each job<br />
4. they are always qualified per ASNT SNT-TC-1A<br />
ANS: 2<br />
Charlie Chong/ Fion Zhang
Q5. Which of the following is not part of the minimum content of a written<br />
radiographic procedure?<br />
1. type of screens used if any<br />
2. type of emulsion used<br />
3. film brand & designation<br />
4. maximum X-ray voltage or isotope used<br />
ANS: 2<br />
Q6. How can compliance with a written radiographic procedure be<br />
demonstrated?<br />
1. by showing the film to the A.I.<br />
2. by confirming the accuracy of the radiographs with a welder or welding<br />
foreman<br />
3. by verifying the proper density and demonstrating the IQI image<br />
requirements<br />
4. by demonstrating the required sensitivity by showing the “3T” hole in a hole<br />
type IQI<br />
ANS: 3<br />
Charlie Chong/ Fion Zhang
Q7. What finished surface is required of butt welds?<br />
1. all surface cracks must run vertically in the center<br />
2. all surface cracks must run horizontally in the center<br />
3. they must not have any irregularities or contours that will mask defects or<br />
interfere with interpretation<br />
4. they must not have any undercut or pinholes that will mask defects or<br />
interfere with interpretation<br />
ANS: 3<br />
Q8. One reason for a system of radiographic film identification is:<br />
1. to identify the film manufacturer<br />
2. so the location of defects will be traceable to the weldment<br />
3. to keep track of how much film is used for billing purposes<br />
4. so the welders will know where to have the film placed by the radiographer<br />
ANS: 2<br />
Charlie Chong/ Fion Zhang
Q9. Intensifying screens may be used __________________ .<br />
1. only when radiographing at night<br />
2. only for Polaroid SE-1968 instant radiographs<br />
3. except when restricted by the referencing Code Section<br />
4. for color radiographs only<br />
ANS: 3<br />
Q10. IQIs may be what types?<br />
1. wire<br />
2. hole<br />
3. IQI<br />
4. 1 & 2 above<br />
ANS: 4<br />
Charlie Chong/ Fion Zhang
Q11. Viewing facilities for radiographs shall __________________ .<br />
1. be small, warm and comfortable enough for afternoon naps<br />
2. have adjustable lighting with variable temperature control for film storage<br />
3. be bright and airy with lots of ferns and plants<br />
4. subdued background lighting that will not cause glare on the film<br />
ANS: 4<br />
Q12. The direction of the central beam of radiation should be _____ the area<br />
of interest whenever practical.<br />
1. as close as possible to<br />
2. centered on<br />
3. no more than 18” from<br />
4. at least 36” from<br />
ANS: 2<br />
Charlie Chong/ Fion Zhang
Q13. Where are the IQI(s) normally placed?<br />
1. in the center of the weldment<br />
2. adjacent to the weld but not in the area of interest<br />
3. on the film side<br />
4. none of the above<br />
ANS: 2<br />
Q14. Where are location markers placed if they are to appear as a<br />
radiographic image?<br />
1. on the part to be radiographed<br />
2. on the film in the dark room<br />
3. on the IQIs top side over the “2T” hole<br />
4. 1 & 3 above<br />
ANS: 1<br />
Charlie Chong/ Fion Zhang
Q15. The IQI is normally placed on which side of a part?<br />
1. the IQI is optional so it doesn’t matter<br />
2. the film side; the same side of the part to be inspected as the comparator<br />
3. the source side; the same side of the part being inspected as the source of<br />
the radiation<br />
4. the film side; the same side of the part to be inspected as the film<br />
ANS: 3<br />
Q16. What designation is used to indicate the IQI is on the film side?<br />
1. it is only noted on the radiographic report - there is no other designation<br />
used<br />
2. the welder noted it on the weld map<br />
3. the IQI may not be placed on the film side<br />
4. a lead letter “F” placed next to or on the IQI<br />
ANS: 4<br />
Charlie Chong/ Fion Zhang
Q17. How many IQI’s should appear on each radiograph?<br />
1. there must always be one on every radiograph and it must appear as a<br />
radiographic image<br />
2. there must always be one on every radiograph but it need not appear as a<br />
radiographic image<br />
3. there must always be two on every radiograph and it must appear as a<br />
radiographic image<br />
4. it depends on the configuration used to set up the shot (panoramic multifilm,<br />
single shots, etc...)<br />
ANS: 4<br />
Q18. Shims may be placed under IQIs to simulate weld reinforcement to<br />
assure the density in the area of interest is not less than _________ lighter<br />
than the density through the IQI.<br />
1. 10%<br />
2. 25%<br />
3. 15%<br />
4. 5%<br />
ANS: 3<br />
Charlie Chong/ Fion Zhang
Q19. Which of the following blemishes is permitted on film as long as they do<br />
not interfere with interpretation and do not mask or become confused with<br />
discontinuities in the area of interest?<br />
1. fogging & false indications from defective screens<br />
2. scratches, crimps, static marks & dirtiness<br />
3. processing defects such as streaks & water marks<br />
4. all of the above<br />
ANS: 4<br />
Q20. The basic minimum density requirements for single film viewing are:<br />
1. 1.8 for film made with an isotope and 2.0 for film made with an X-ray<br />
machine<br />
2. 4.0 for film made with an isotope and 4.0 for film made with an X-ray<br />
machine<br />
3. 2.0 for film made with an isotope and 1.8 for film made with an X-ray<br />
machine<br />
4. no more than 25% lighter in any area than the density in the darkest area<br />
ANS: 3<br />
Charlie Chong/ Fion Zhang
Q21. When using only one hole IQI per film density measurements may vary<br />
through the area of interest by no more than ____________ .<br />
1. minus 15% or plus 30%<br />
2. plus 15% or minus 30%<br />
3. plus 1.5 X ratio of average densities<br />
4. no more than 15% from the density of the step wedge<br />
ANS: 1<br />
Q22. What are the essential indications of sensitivity for image quality of a<br />
radiograph?<br />
1. display of the “1T” hole<br />
2. clearly visible location markers<br />
3. display of the specified hole or wire of the IQI used<br />
4. proper density variations<br />
ANS: 3<br />
Charlie Chong/ Fion Zhang
Q23. Excessive backscatter in indicated by:<br />
1. a lead letter “F” being visible on the radiograph<br />
2. a dark image of the lead letter “B” on a lighter background<br />
3. any image of the lead letter “B” in the background of the film<br />
4. a light image of the lead letter “B” on a dark background<br />
ANS: 4<br />
Q24. A tank is built with plate under 2 inches thick. The geometric<br />
unsharpness of the radiographs shall not exceed:<br />
1. 0.010"<br />
2. 0.020"<br />
3. 0.<strong>03</strong>0"<br />
4. 0.040"<br />
ANS: 2<br />
Charlie Chong/ Fion Zhang
Q25. The following information may not be included in the documentation<br />
accompanying the radiographs:<br />
1. minimum source to object distances and film brand & designation<br />
2. number of exposures & film identification<br />
3. Isotope & effective focal spot sizes<br />
4. development time & exact shim material specifications<br />
ANS: 4<br />
Q26. When the radiographs are presented to the Authorized Inspector ___<br />
1. he will interpret them and indicate the disposition of each film on the report.<br />
2. he will view them only after a good lunch paid for by the NDE technician.<br />
3. the manufacturer will have interpreted all the film and will have indicated<br />
the disposition of each on the report and will have also included all the other<br />
information required to on the report.<br />
4. the radiographs will be marked with a permanent marker or by other means<br />
to indicate which technician processed them.<br />
ANS: 3<br />
Charlie Chong/ Fion Zhang
ASME V: Article 6 & 7<br />
PT & MT<br />
Charlie Chong/ Fion Zhang
Q33. Which of the following is not a type of discontinuity liquid penetrant<br />
examination is effective in detecting.<br />
1. cold shuts & laminations<br />
2. subsurface cracks (?)<br />
3. pinholes<br />
4. seams<br />
ANS: 1<br />
Q34. Which of the following need not be included in a Liquid Penetrant<br />
procedure?<br />
1. post examination cleaning details<br />
2. materials, shapes & sizes to be examined<br />
3. temperature of penetrant after the examination<br />
4. processing details for removal of excess penetrant<br />
ANS: 3<br />
Charlie Chong/ Fion Zhang
Q35. Revisions to PT procedures may be required if there is<br />
1. a change in part processing that may close the surface openings of defects<br />
or leave interfering deposits<br />
2. a change or substitution in type or family of penetrant materials<br />
3. a change or substitution is made in the precleaning materials or process<br />
4. All of the above<br />
ANS: 3<br />
Q36. Which of the following penetrant techniques may not be used?<br />
1. solvent removable<br />
2. hard drying fluorescent<br />
3. water washable<br />
4. post emulsifying<br />
ANS: 2<br />
Charlie Chong/ Fion Zhang
Q37. What materials require the use of tested and certified liquid penetrants<br />
as to the contaminants in the penetrant?<br />
1. carbon steels with > 3% chrome<br />
2. aluminum<br />
3. nickel base alloys & titanium<br />
4. copper<br />
ANS: 3<br />
Q38. What condition must the surface to be examined be in prior to<br />
conducting the examination?<br />
1. dry & free of all remedial demagnetization effects<br />
2. dry & free of any grease, lint or scale for 1” on all sides of the area to be<br />
examined<br />
3. free of all subsurface defects previously detected by other methods<br />
4. dry & free of extraneous matter for 2” on all sides of the area to be<br />
examined<br />
ANS: 2<br />
Charlie Chong/ Fion Zhang
Q39. The minimum period of drying time after initial cleaning is ____.<br />
1. at least 5 minutes to assure that all the cleaning solution has evaporated<br />
prior to applying the penetrant<br />
2. a minimum time established to assure that all the cleaning solution has<br />
evaporated prior to applying the penetrant<br />
3. at least 15 minutes to assure that all the cleaning solution has evaporated<br />
prior to applying the penetrant<br />
4. at least 10 minutes to assure that all the cleaning solution has evaporated<br />
prior to applying the penetrant<br />
ANS: 2<br />
Q40. Which of the following is not a suitable means of removing penetrant.<br />
1. flushing water washable penetrant with cool water<br />
2. steaming water washable penetrant to remove it<br />
3. wiping solvent removable penetrant with a lint free cloth<br />
4. rinsing post emulsifying penetrant with a light stream of 100 degree F water<br />
ANS: 2<br />
Charlie Chong/ Fion Zhang
Q41. Without special qualification penetrant testing can be performed<br />
between ______________ degrees.<br />
1. 50 degrees F to 135 Degrees F<br />
2. 50 degrees F to 125 degrees F<br />
3. 72 degrees F to 130 Degrees F<br />
4. 50 degrees F to 130 Degrees F<br />
ANS: 2<br />
Q42. When PT examination is to be performed above or below ________ the<br />
procedure is qualified for the temperature range intended using a ______ .<br />
1. 50 degrees F to 125 degrees F ---- Image Quality Indicator<br />
2. 50 degrees F to 125 degrees F ---- field indicator<br />
3. 50 degrees F to 125 degrees F ---- comparator<br />
4. 50 degrees F to 125 degrees F ---- and DAC curve<br />
ANS: 3<br />
Charlie Chong/ Fion Zhang
Q43. Fluorescent penetrant examination shall not follow ____.<br />
1. UT thickness measurement<br />
2. radiography because the residual radiation will cause false indications<br />
3. Eddy current examination<br />
4. color contrast PT examination<br />
ANS: 4<br />
Q44. The standard maximum emulsification time for post emulsifying<br />
penetrants is:<br />
1. 90 seconds<br />
2. 6 minutes<br />
3. 10 minutes<br />
4. as demonstrated by test<br />
ANS: 4<br />
Charlie Chong/ Fion Zhang
Q45. When removing water washable penetrant the spray of water may not<br />
exceed?<br />
1. 100 degrees F & 50 psi<br />
2. 90 degrees F & 60 psi<br />
3. 110 degrees F & 50 psi<br />
4. 110 degrees F & 55 psi<br />
ANS:3<br />
Q46. Water washable and post emulsifying penetrants may be dried using<br />
circulated air as long as the surface of the part does not exceed:<br />
1. 100 degrees F<br />
2. 110 degrees F<br />
3. 212 degrees F<br />
4. 125 degrees F<br />
ANS: 4<br />
Charlie Chong/ Fion Zhang
Q47. How shall PT indications be evaluated per ASME Article 6?<br />
1. per universal acceptance standards in ASNT SNT-TC-1A<br />
2. in terms of the acceptance standards of the referencing code section<br />
3. per the specific requirements in appendix N.5.3 of <strong>API</strong>-789<br />
4. per the Owner/User procedures for NDE<br />
ANS: 2<br />
Q48. Five typical of discontinuities detectable by the magnetic particle<br />
method are:<br />
1. seams, low carbon content, cold shuts, laminations, and bad developing<br />
2. cracks, caustic embrittlement, seams, and silicon isotope matrix syndrome<br />
3. excessive weld seam reinforcement, cracks, cold shuts, seams, and low<br />
viscosity<br />
4. cracks, laps, seams, cold shuts and laminations<br />
ANS: 4<br />
Charlie Chong/ Fion Zhang
Q49. What is the magnetic particle examination medium?<br />
1. the surfaces of ferromagnetic work pieces<br />
2. dry, wet or fluorescent ferromagnetic particles<br />
3. any type of small metal particles<br />
4. high iron content enamel or latex coatings<br />
ANS: 2<br />
Q50. If coating are left in place during MT examination ________<br />
1. the particles used must be the same color as the coating<br />
2. coatings are not allowed to be left in place - all coatings must be removed<br />
3. the procedure must be demonstrated as capable of detecting indications<br />
through the maximum thickness of the coating applied<br />
4. all indications must be verified with penetrant examination in addition to the<br />
magnetic particle examination<br />
ANS: 3<br />
Charlie Chong/ Fion Zhang
Q51. What type of discontinuity is the magnetic particle method most<br />
sensitive to?<br />
1. subsurface discontinuities<br />
2. slag inclusions not open to the surface<br />
3. linear discontinuities perpendicular to the lines of flux<br />
4. high nickel alloy weld defects<br />
ANS: 3<br />
Q52. When performing fluorescent MT examiners shall allow _____<br />
_____________ for their eyes to adjust<br />
to the darkened conditions.<br />
1. 5 minutes<br />
2. 90 seconds<br />
3. 3 minutes<br />
4. 10 minutes<br />
ANS: 1<br />
Charlie Chong/ Fion Zhang
Q53. The intensity of the black light used shall be a minimum of:<br />
1. 800 μW / cm2 12” from the surface of the part being examined<br />
2. 600 μW / cm2 on the surface of the part being examined<br />
3. 1800 μW / cm2 18” from the surface of the part being examined<br />
4. 1000 μW / cm2 on the surface of the part being examined<br />
ANS: 4<br />
Q54. Normally dry particles may not be used on surfaces over _____ and the<br />
wet particle suspension on surface of the work piece may not exceed ______ .<br />
1. 800 0F and 135 0F<br />
2. 900 0F and 212 0F<br />
3. 600 0F and 135 0F<br />
4. 600 0F and 125 0F<br />
ANS: 3:<br />
Charlie Chong/ Fion Zhang
Q55. Magnetic field strength may be verified by using ___________________<br />
1. an amp meter to determine if the field is within + 10% of full scale<br />
2. the proper IQI manufactured using all magnetically identical materials<br />
3. an ohm meter to determine if the field is within + 5% of full scale<br />
4. pie shaped magnetic particle field indicator or artificial flaw shims<br />
ANS: 4<br />
Q56. All examinations will be conducted with sufficient overlap to assure an<br />
minimum of _________coverage?<br />
1. 99%<br />
2. 100%<br />
3. 80%<br />
4. 90%<br />
ANS: 2<br />
Charlie Chong/ Fion Zhang
Q57. When using the prod technique the maximum prod spacing allowed is<br />
__________<br />
1. 1 foot<br />
2. 3 inches<br />
3. 1/2 foot<br />
4. 8 inches<br />
ANS: 4<br />
Q58. Magnetic particle equipment with ammeters must be calibrated<br />
_____________<br />
1. always prior to each use<br />
2. after every 10 examination sessions<br />
3. before and after each examination<br />
4. prior to first use if it the equipment has not been used for a year or more.<br />
ANS: 4<br />
Charlie Chong/ Fion Zhang
Q59. AC yokes must be able to lift _______ pounds at a maximum spacing of<br />
__________ .<br />
1. 40 pounds at the maximum spacing to be used during examinations<br />
2. 10 pounds at a maximum spacing of 18 inches or 1 1/2 feet<br />
3. 40 pounds at a maximum spacing of 1.5 times the length of the yoke legs<br />
4. 10 pounds at the maximum spacing to be used during examinations<br />
ANS: 4<br />
Q60. MT equipment with ammeters must be calibrated to a standard<br />
___________<br />
1. supplied by the MT equipment manufacturer<br />
2. supplied by the ISO MT standards committee<br />
3. traceable to a National Standard<br />
4. welded by a qualified welder or welding operator qualified in accordance<br />
with ASME Section V<br />
ANS: 3<br />
Charlie Chong/ Fion Zhang
ASME SECTION V ANSWER KEY<br />
Charlie Chong/ Fion Zhang
ASME SECTION IX – WELDING - PRACTICE QUESTIONS:<br />
Q1. The purpose of the WPS and PQR is to determine that:<br />
1. the welder is qualified<br />
2. the base metals are strong enough<br />
3. the weldment has the desired properties<br />
4. the skill of the welder<br />
ANS: 3<br />
Q2. The WPS lists:<br />
1. nonessential variables<br />
2. essential variables<br />
3. ranges for 1 & 2 above<br />
4. all of the above<br />
ANS: 4<br />
Charlie Chong/ Fion Zhang
Q3. The PQR must list:<br />
1. essential variables<br />
2. nonessential variables<br />
3. supplementary essential variables (when notch toughness is not required)<br />
4. all of the above<br />
ANS: 1<br />
Q4. What is the earliest Edition of Section IX recognized by the current edition?<br />
1. 1958<br />
2. 1992<br />
3. 1987<br />
4. 1962<br />
ANS: 4<br />
Charlie Chong/ Fion Zhang
Q5. New Welding Procedure Specifications must meet the ______________<br />
Edition and addenda of Section IX.<br />
1.1962<br />
2. latest mandatory<br />
3. 1986<br />
4. 1995<br />
ANS: 2<br />
Q6. Each _______shall conduct the tests required by Section IX to qualify the<br />
WPS's used during the construction, alteration, or repair.<br />
1. Welder or welding operator<br />
2. Manufacturer or contractor<br />
3. Inspector<br />
4. All of the above<br />
ANS: 2<br />
Charlie Chong/ Fion Zhang
Q7. The records of procedure, welder and welding operator qualification must<br />
be available to the ____ .<br />
1. Manufacturer or Contractor<br />
2. Welder<br />
3. Authorized Inspector<br />
4. Foreman<br />
ANS: 3<br />
Q8. A welder qualifying with a groove weld in plate in the 4G position is<br />
qualified to weld groove welds in plate and pipe over 24" O.D. in the<br />
___positions.<br />
1. Overhead<br />
2. Flat & horizontal<br />
3. Flat & overhead<br />
4. Horizontal<br />
ANS: 3<br />
Charlie Chong/ Fion Zhang
Q9. A welder qualifying with plate fillet welds in the 3F and 4F positions is<br />
qualified to weld groove welds in plate in the _______________ positions.<br />
1. Flat only<br />
2. Flat and horizontal<br />
3. Flat and vertical<br />
4. None of the above<br />
ANS: 4<br />
Q10. A welder qualifying by making a groove weld on pipe with an O.D. of<br />
3/4" in the 5G position is qualified to weld groove welds in:<br />
1. 1/2" O.D. Pipe in the overhead position<br />
2. 6" O.D. Pipe in the vertical position<br />
3. 3/4" O.D. pipe in the horizontal position<br />
4. None of the above<br />
ANS: 2<br />
Charlie Chong/ Fion Zhang
ASME IX: QW-452.3<br />
GROOVE-WELD DIAMETER LIMITS<br />
Charlie Chong/ Fion Zhang
ASME IX: QW-461.9<br />
Charlie Chong/ Fion Zhang
Q11. In general, qualification on groove welds also qualifies a welder to make:<br />
1. Stud welds<br />
2. Overhand welds<br />
3. Fillet welds<br />
4. All of the above<br />
ANS: 3<br />
Q12. Charpy V-notch tests are performed to determine a weldment's<br />
1. Tensile strength<br />
2. Ductility<br />
3. Notch toughness<br />
4. All of above<br />
ANS: 3<br />
Charlie Chong/ Fion Zhang
Q13. A welder making a groove weld using the SAW process on P1 materials<br />
may be qualified using radiography.<br />
1. True<br />
2. False<br />
ANS: 1<br />
Charlie Chong/ Fion Zhang
Q14. When a tensile specimen breaks in the base metal outside of the weld<br />
or fusion line, the strength recorded may be _________________ below the<br />
specified tensile and be accepted.<br />
1. 3.5%<br />
2. .5%<br />
3. 5%<br />
4. All of the above<br />
ANS: 4<br />
Charlie Chong/ Fion Zhang
Q15. Guided-bend specimens shall have no open defects in the weld or heat<br />
effected zone exceeding ________________ measured in any direction on<br />
the convex surface of the specimen after bending.<br />
1. 1/16"<br />
2. 3/32"<br />
3. 1/8"<br />
4. None of the above<br />
ANS: 3<br />
Q16. When using radiographs to qualify welders, the acceptance standards<br />
used are found in:<br />
1. ASME Section V<br />
2. ASME Section IX<br />
3. ASME Section VIII<br />
4. The referencing code<br />
ANS: 2<br />
Charlie Chong/ Fion Zhang
Q17. A WPS must describe:<br />
1. Essential variables<br />
2. Nonessential variables (?)<br />
3. Supplementary essential variables when required for notch toughness<br />
4. All of the above<br />
ANS: 4<br />
Q18. A PQR must describe:<br />
1. Nonessential variables<br />
2. Essential variables<br />
3. Results of Welder Qualification tests<br />
4. Project description & NDE methods<br />
ANS: 2<br />
Charlie Chong/ Fion Zhang
Q19. The _________ must certify the PQR as accurate.<br />
1. Inspector<br />
2. Manufacturer or contractor<br />
3. Welder<br />
4. All of the above<br />
ANS: 2<br />
Q20. For the SMAW process ______ is an essential variable for the WPS.<br />
1. Groove design<br />
2. Post Weld heat treatment<br />
3. Root spacing<br />
4. Method of cleaning<br />
ANS: 2<br />
Charlie Chong/ Fion Zhang
Q21. For the SAW process _____ is an essential variable for the WPS.<br />
1. Supplemental powdered filler metal (if used)<br />
2. Filler metal diameter<br />
3. Preheat maintenance<br />
4. Addition or deletion of peening<br />
ANS: 1<br />
Q22. The basic purpose of testing a welder is to establish the welder's<br />
______________.<br />
1. Knowledge of welding requirements<br />
2. Ability to deposit sound weld metal<br />
3. mechanical ability to operate equipment<br />
4. General attitude toward welding inspectors<br />
ANS: 2<br />
Charlie Chong/ Fion Zhang
Q23. The record of a welder's performance test is called a ______________.<br />
1. PQR<br />
2. WQR<br />
3. WPS<br />
4. WPQ<br />
ANS:4<br />
Q24. If a welder qualified with the manual SMAW process on Jan. 1, 1997<br />
and last welded with manual SMAW on March 15, 1997, would he still be<br />
qualified on October 7, 1997?<br />
1. Yes<br />
2. No<br />
ANS: 2<br />
Charlie Chong/ Fion Zhang
Q25. A welder qualifying with the SMAW process with a double welded<br />
groove weld is qualified to weld.<br />
1. Without backing<br />
2. With all base metals<br />
3. With backing only<br />
4. With P1 backing only<br />
ANS: 3<br />
Q26. Immediate retests of welders qualifications coupons<br />
1. Must use the same method<br />
2. May use any method<br />
3. Are not allowed<br />
4. Require Inspector approval<br />
ANS: 1<br />
Charlie Chong/ Fion Zhang
Q27. Welder performance qualification records must describe all the<br />
_____________ variables specified.<br />
1. Essential & nonessential<br />
2. Nonessential<br />
3. Essential<br />
4. Brazing<br />
ANS: 3<br />
Q28. A welder depositing 1/2" of weld metal with the SMAW process is<br />
qualified to deposit up to ___________ of weld metal.<br />
1. 8"<br />
2. Max to be welded (?)<br />
3. 1"<br />
4. 1/2"<br />
ANS: 3<br />
Charlie Chong/ Fion Zhang
QW-452.1(b)<br />
THICKNESS OF WELD METAL QUALIFIED<br />
Charlie Chong/ Fion Zhang
Q29. "P" numbers are used to designate groups of<br />
1. Electrodes<br />
2. Flux<br />
3. Base metals<br />
4. Joints<br />
ANS: 3<br />
Q30. A welder qualifying with P-No. 21 is qualified to weld<br />
1. P-1 - P-11 to P-1 - P-11<br />
2. P-8 - P8<br />
3. P-21 - P-25 to P-21 - P-25<br />
4. P21 to P21 only<br />
ANS: 3<br />
Charlie Chong/ Fion Zhang
QW-4<strong>03</strong>.18 A change from one P-Number to any other P-Number or to a<br />
base metal not listed in table QW/QB-422, except as permitted in QW-423,<br />
and in QW-420.<br />
QW-423 Alternate Base Materials for Welder Qualification<br />
QW-423.1 Base metal used for welder qualification may be substituted for the<br />
metal specified in the WPS in accordance with the following table. When a<br />
base metal shown in the left column is used for welder qualification, the<br />
welder is qualified to weld all combinations of base metals shown in the right<br />
column, including unassigned metals of similar chemical composition to these<br />
metals.<br />
Charlie Chong/ Fion Zhang
Q31. Section IX groups welding electrodes by<br />
1. AWS class<br />
2. ASME specification<br />
3. SFA<br />
4. "F" number<br />
ANS:4<br />
Q32. Ferrous weld metal chemical composition may be designated using<br />
1. "P" number<br />
2. Welder I.D.<br />
3. "A" number<br />
4. page number<br />
ANS: 3<br />
Charlie Chong/ Fion Zhang
Q33. For welder qualification with the SMAW process _____ is an essential<br />
variable.<br />
1. Base metal thickness<br />
2. Peening<br />
3. P-number<br />
4. Electrode diameter<br />
ANS: 3<br />
Q34. Each welder must be assigned a(n)<br />
1. P number<br />
2. Unique identifier<br />
3. Hood & gloves<br />
4. Inspector<br />
ANS: 2<br />
Charlie Chong/ Fion Zhang
Q35. A welder qualification coupon welded in the 2G position of 1/2” thick<br />
plate material must have how many root and face bends?<br />
1. 2 - 1 each<br />
2. 4 - 2 each<br />
3. 6 - 2 face and 4 root<br />
4. 8 - 4 each<br />
ANS: 1<br />
Q36. A WPS shall have:<br />
1. the welder referenced.<br />
2. the PQR referenced.<br />
3. the NACE referenced.<br />
4. the PDQ referenced.<br />
ANS: 2:<br />
Charlie Chong/ Fion Zhang
Q37. Welding in the 1G position qualifies a welder in what position?<br />
1. horizontal<br />
2. vertical<br />
3. flat<br />
4. overhead<br />
ANS: 3<br />
Q38. Which of the following is an essential variable for qualification of an<br />
SMAW welding procedure?<br />
1. “F” number<br />
2. joint design<br />
3. diameter of the electrode<br />
4. pipe diameter<br />
ANS: 1<br />
Charlie Chong/ Fion Zhang
Q39. A welder may be qualified by RT if:<br />
1. The first 3' of the first production weld is radiographed.<br />
2. the first 6" of the first production weld is radiographed for the processes &<br />
mode allowed.<br />
3. If the first production weld passes mechanical tests.<br />
4. If the first production weld is passed by MT examination.<br />
ANS: 2<br />
Q40. A welder may be qualified using RT in these processes except for<br />
_______________ .<br />
1. GMAW (short-circuiting mode)<br />
2. GMAW (pulsed-arc)<br />
3. GMAW (spray-arch)<br />
4. SMAW<br />
ANS: 1<br />
Charlie Chong/ Fion Zhang
Q41. A welder was qualified for SMAW, GMAW and GTAW on March 1. He<br />
has welded daily with only SMAW and has not welded with the others during<br />
a period from March 1 to November 1. He is qualified in the other processes<br />
for:<br />
1. 3 months.<br />
2. 6 months.<br />
3. the qualifications have expired.<br />
4. 9 months.<br />
ANS: 3<br />
Q42. Which of the following is an additional essential variable per <strong>API</strong>-650?<br />
1. welders must pass a visual acuity exam in addition to Section IX<br />
qualification<br />
2. filler metals must be stored in an oven at no less than 250 degrees F<br />
3. protective weld prep coatings must be documented and described<br />
4. Charpy impact tests must be notarized and signed by a metallurgist<br />
ANS: 3<br />
Charlie Chong/ Fion Zhang
ASME SECTION IX ANSWER KEY<br />
Charlie Chong/ Fion Zhang
大 年 初 三 - 龙 马 精 神 !<br />
Charlie Chong/ Fion Zhang
Charlie Chong/ Fion Zhang
Charlie Chong/ Fion Zhang
Good Luck!<br />
Charlie Chong/ Fion Zhang
Good Luck!<br />
Charlie Chong/ Fion Zhang