Understanding API ICP653 Reading 15-Worksheet-11a
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Q3. Why should precaution be taken if Form QW-483 is used to document the<br />
essential variables that were used during the welding of the test coupons?<br />
(a) The Form does not easily lend itself to cover multiple processes or more<br />
than one No. in one test coupon.<br />
(b) Revisions are not permitted except as defined in QW-200.2 (c).<br />
(c) Form QW-483 is only a suggested format for procedure qualifications.<br />
ANS: a<br />
Q4. Why have P-No's. been assigned for different base metals?<br />
(a) They are unique identifiers assigned by Section IX.<br />
(b) P-No's. simplify the identification of various ASTM materials.<br />
(c) To reduce the number of welding procedure qualifications, dependent on<br />
characteristics such as composition, weldability, and mechanical<br />
properties.<br />
ANS: c<br />
Charlie Chong/ Fion Zhang
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