API Exam API-936 Topic 1 Question 3 Discussion

Actual exam question for API's API-936 exam

Question #: 3
Topic #: 1

[All API-936 Questions]

[Acceptance Criteria]

Maximum allowable crack length, visible on the surface of a dense firebrick, is:

A1/4 in. (6 mm)

B3/8 in. (10 mm)

C1/2 in.(12 mm)

D3/4 in. (19 mm)

Show Suggested Answer

Suggested Answer: C

by Teri at Jun 13, 2025, 01:45 AM

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Dalene

3 days ago

Whoa, what's with all these fancy crack measurements? I'm just gonna go with the biggest one, D) 3/4 in. (19 mm). The more cracks, the more character, am I right?

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Rory

6 days ago

Alright, time to use my expert firebrick knowledge! I'm going with A) 1/4 in. (6 mm). Gotta keep those cracks micro, you know?

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Toshia

7 days ago

Hmm, I'm torn between B and C. Guess I'll go with C since it's the middle ground. Although, at this point, the firebrick might as well be a cracker.

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Blythe

13 days ago

C) 1/2 in. (12 mm) seems like the most reasonable answer. Anything bigger and the firebrick might as well be swiss cheese!

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Carman

2 days ago

A) 1/4 in. (6 mm) is too small, it wouldn't allow for any expansion or movement.

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Mammie

15 days ago

I think the correct answer is 1/2 in. (12 mm) because a larger crack could compromise the integrity of the firebrick.

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Lezlie

18 days ago

I'm going with D) 3/4 in. (19 mm). That's a pretty generous allowance, but I guess they want to ensure the firebrick can still function properly.

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Nicolette

2 days ago

User 1: I think the correct answer is A) 1/4 in. (6 mm).

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Dorethea

21 days ago

I disagree, I believe it is 3/8 in. (10 mm).

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Olene

30 days ago

I think the correct answer is B) 3/8 in. (10 mm). Anything larger than that could compromise the structural integrity of the firebrick.

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Roxanne

3 days ago

I agree, B) 3/8 in. (10 mm) seems like the correct answer.

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Mammie

1 months ago

I think the maximum allowable crack length is 1/4 in. (6 mm).

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