Understanding API ICP653 Reading 15-Worksheet-11a
TASK#5 Reading: Procedure Qualifications QW-200 thru QW-283 Q1. A Manufacturer may not subcontract the preparation of test materials for welding and subsequent work on preparation of test specimens from the completed weldment, performance of NDE, and mechanical tests. (a) True (b) False ANS: b Q2. A shop wishes to combine two existing PQR's to write a new composite WPS. PQR No.1 was in GTAW process with a 1/4" coupon, PQR No.2 was in SMAW process with 1/2" coupon. The WPS specifies GTAW process will only be used for the root passes with maximum deposit not to exceed 1/4". The base metal thickness range on the WPS should be; (a) 1/16" min 1" max. (b) 1/16" min, 1/2" max. (c) 3/16" min. 1" max. (d) 3/16" min, 1/2" max. ANS: b Charlie Chong/ Fion Zhang
QW-200.4 Combination of Welding Procedures (a) More than one WPS having different essential, supplementary essential, or nonessential variables may be used in a single production joint. Each WPS may include one or a combination of processes, filler metals, or other variables. Where more than one WPS specifying different processes, filler metals, or other essential or supplementary essential variables is used in a joint, QW-451 shall be used to determine the range of base metal thickness and maximum weld metal thickness qualified for each process, filler metal, or set of variables, and those limits shall be observed. Alternatively, qualification of WPSs for root deposits only may be made in accordance with QW-200.4(b). When following a WPS that has more than one welding process, filler metal, or set of variables, each process, filler metal, or set of variables may be used individually or in different combinations, provided Charlie Chong/ Fion Zhang
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TASK#5<br />
<strong>Reading</strong>: Procedure Qualifications<br />
QW-200 thru QW-283<br />
Q1. A Manufacturer may not subcontract the preparation of test materials for<br />
welding and subsequent work on preparation of test specimens from the<br />
completed weldment, performance of NDE, and mechanical tests.<br />
(a) True<br />
(b) False<br />
ANS: b<br />
Q2. A shop wishes to combine two existing PQR's to write a new composite<br />
WPS. PQR No.1 was in GTAW process with a 1/4" coupon, PQR No.2 was in<br />
SMAW process with 1/2" coupon. The WPS specifies GTAW process will only<br />
be used for the root passes with maximum deposit not to exceed 1/4". The<br />
base metal thickness range on the WPS should be;<br />
(a) 1/16" min 1" max.<br />
(b) 1/16" min, 1/2" max.<br />
(c) 3/16" min. 1" max.<br />
(d) 3/16" min, 1/2" max. ANS: b<br />
Charlie Chong/ Fion Zhang
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