Understanding API ICP653 Reading 15-Worksheet-11a

Q7. For vessels or parts of vessels constructed with P-No. 11 base metals,
weld grooves for thickness' ____shall be prepared by thermal processes,
when used in fabrication.
(a) 5/8“
ANS: b QW-213(?)
Q8. A butt welded coupon consisted of 1-1/2" carbon steel and ¼” stainless
steel base metals, what base metal thickness range does this coupon qualify?
(Notch toughness is not a requirement).
(a) 1/16" to 8" for both metals,
(b) 1/16" to 1/2" for stainless steel 3/16" to 8" for carbon steel.
(c) 1/16" to 1/2" for stainless steel3/16" to unlimited thickness for carbon steel.
ANS: b
Charlie Chong/ Fion Zhang