Understanding API ICP653 Reading 15-Worksheet-11a

Q10. What is the purpose of assigning Group Numbers to base metals?
(a) To classify the different base metal Grades.
(b) To classify the metals within P-No's. for the purpose of procedure
qualification where notch-toughness requirements are specified.
(c) To simplify the identification of ASTM materials.
ANS: b
Q11. In procedure qualification on groove weld qualifications on 1/2" plate
qualify fillet welds for___ in base metal thicknesses and ___in diameters on
pipe and tube.
(a) 1/16"to 1", 2 7/8" O.D. and over
(b) All, All
(c) All, 2 7/8" O.D. and over
(d) 1/16" to 1 ", all
ANS: b
Charlie Chong/ Fion Zhang