Free Practice API API-577 Exam Questions 2026

Stay ahead with 100% Free Welding Inspection and Metallurgy API-577 Dumps Practice Questions

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Total 112 Questions | Updated On: May 21, 2026

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Question 1

The change in shape (deformation) that a test specimen experiences when it is stressed or loaded is called:

A : Yield.

B : Strain.

C : Stress.

D : Plasticity.

Answer: B

Question 2

What term is used to describe the mechanical working of metals using impact blows?

A : Hammering

B : Mechanical stress relieving

C : Needle gunning

D : Peening

Answer: D

Question 3

A four-digit designation for a SMAW electrode under AWS classification uses the third digit to define the:

A : Coating characteristics.

B : Chemical composition.

C : Strength of the filler metal.

D : Welding position.

Answer: D

Question 4

One of the main differences between welding nickel alloys and austenitic stainless steels is that with nickel alloys:

A : Interpass temperature control is not needed.

B : There is less susceptibility to cracking from contaminants.

C : There is less susceptibility to lack of fusion.

D : The weld pool tends to be sluggish.

Answer: D

Question 5

To reduce the possibility of cracking, which of the following maximum hardness levels is required for weldments in wet H2S service?

A : HRC 20

B : HRC 22

C : HRC 25

D : HRC 32

Answer: B

Page: 1 / 23

Total 112 Questions | Updated On: May 21, 2026

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