API Exam API-571 Topic 1 Question 89 Discussion

Actual exam question for API's API-571 exam

Question #: 89
Topic #: 1

For some materials such as titanium, carbon steel and low alloy steel, the number of cycles to fatigue fracture decreases with ________ until an endurance limit is reached. Below this endurance limit, fatigue cracking will not occur, regardless of the number of cycles.

ATemperature increases

BStress endurance

CPressure decreases

DNone of the above

Show Suggested Answer

Suggested Answer: B

by Eve at Jun 20, 2024, 12:53 AM

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Peggy

5 days ago

I agree with Arthur, because higher temperature can weaken the material and lead to fatigue cracking.

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Arthur

6 days ago

I think the answer is A) Temperature increases.

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