Deal of The Day! Hurry Up, Grab the Special Discount - Save 25% - Ends In 00:00:00 Coupon code: SAVE25

- Free Preparation Discussions

API-571 Exam - Topic 1 Question 130 Discussion

Actual exam question for API's API-571 exam

Question #: 130
Topic #: 1

[All API-571 Questions]

Short-term stress rupture is a/an:

Afailure caused by repeated cycling from elevated temperature, typically characterized by through-wall oxide filled ruptures with little bulging.

Belevated temperature failure caused by localized overheating, typically characterized by bulging and thinning.

Celevated temperature failure caused by diffusion of hydrogen into the material, typically characterized by blistering and cracking.

Dcracking failure caused by sulfides formed at elevated temperature that convert to acids on exposure to moisture and oxygen.

Show Suggested Answer

Suggested Answer: B

From API RP 571 Section 5.3.2.1 (Creep and Stress Rupture):

''Short-term creep rupture is often associated with localized overheating and results in bulging and thinning, often with a characteristic 'fish-mouth' rupture appearance. These failures occur under sustained load in a short time (hours or days), typically in high-temperature service due to a sudden increase in temperature or poor heat distribution.''

Thus, Option B accurately describes the mechanism and visual indications of short-term stress rupture.

by Susana at Aug 17, 2026, 03:52 AM

Limited Time Offer

25%

Off

Get Premium API-571 Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Roxanne

19 hours ago

I’m a bit confused about the differences between the options. I thought cracking from sulfides was more related to long-term exposure rather than short-term stress.

upvoted 0 times

...

Samira

6 days ago

I remember practicing a question like this where we discussed the characteristics of different types of failures. I feel like bulging is a key indicator for one of the options.

upvoted 0 times

...

Bette

11 days ago

I think short-term stress rupture is related to elevated temperatures, but I'm not sure if it's more about localized overheating or something else.

upvoted 0 times

...