Free API API-571 Exam Actual Questions

The questions for API-571 were last updated On Jan 5, 2025

Question No. 1

With HF acid corrosion, oxygen contamination _________ the corrosion rate of carbon steel and promotes accelerated corrosion and SCC of Alloy 400.

Show Answer Hide Answer
Correct Answer: A

Question No. 2

With ammonia stress corrosion cracking weld hardness should not exceed _______ BHN.

Show Answer Hide Answer
Correct Answer: B

Question No. 3

Which of the following materials is susceptible to sigma phase embrittlement?

Show Answer Hide Answer
Correct Answer: C

Question No. 4

Thermal fatigue cracks propagate ________ to the stress and are usually dagger shaped, transgranular and oxide-filled.

Show Answer Hide Answer
Correct Answer: C

Question No. 5

Once cracking from LME has occurred, grinding out the affected area ______ an acceptable fix.

Show Answer Hide Answer
Correct Answer: B