API 570 STUDY GUIDE 2026 COMPREHENSIVE TEST PAPER QUESTIONS AND CORRECT ANSWERS GRADED A+

API 570 STUDY GUIDE 2026
COMPREHENSIVE TEST PAPER QUESTIONS
AND CORRECT ANSWERS GRADED A+

⩥ Maximum pipe size for performing elliptical shot double wall
technique double wall view. Answer: "3 NPS"


⩥ Pipe size where pipe OD is equal to pipe size (NPS). Answer:
"Greater than or equal to 14 NPS"


⩥ Pipe size where pipe is almost always made using rolled or welded
plate. Answer: "> 16 NPS"


⩥ Weight used to check magnetic strength of an AC Yoke. Answer:
"10lbs"


⩥ Weight used to check strength of a DC yoke or permanent magnet
yoke. Answer: "40"


⩥ Minimum angle of eye to part to count as a visual exam. Answer: "30
degrees"


⩥ 2 primary gamma ray RT sources. Answer: "Iridium 192 / cobalt 60"

, ⩥ Lead letter used during RT to check for back scatter radiation.
Answer: "B"


⩥ Lead letter used during RT to indicate a film side IQI. Answer: "F"


⩥ Hole size that must be visible in RT when using a hole type IQI.
Answer: "2T"


⩥ Minimum light intensity when performing non fluorescent MT / PT /
VT. Answer: "100 ft candles"


⩥ Minimum black light intensity when performing MT or PT
fluorescent exams. Answer: "1000 mW/cm2"


⩥ Maximum UT scanning speed. Answer: "6" per second"


⩥ Maximum allowed thickness on a WPS based on the plate thickness
(T) of a PQR test coupon. Answer: "2T"


⩥ The all position" test coupon". Answer: "6g"