Welding Inspection And Metallurgy (API-577) Free Practice Test

Question 1

Which welding process has been associated most with lack of fusion with shop-fabricated piping?

A. FCAW-SW

B. GMAW-SF

C. FCAW

D. GMAW-S

Correct Answer: D

Question 2

What is the most capable NDE method for finding a discontinuity such as incomplete fusion in a joint?

A. RT

B. ET

C. UT

D. MT

Correct Answer: C

Question 3

Which of the following transfer methods associated with GMAW is characterized by a highly directed stream of discrete drops that are accelerated by arc forces, and negligible spatter?

A. Globular transfer

B. Pulsed droplet transfer

C. Spray transfer

D. Short circuiting transfer

Correct Answer: C

Question 4

Which of the following statements concerning electrode storage in ovens is true?

A. Electrode ovens should be heated by any means, but must have automatic heat controls and visible temperature indicators.

B. Electrodes should never be stored in an oven that is used for food storage.

C. Low-hydrogen electrodes may be stored in ovens with cellulose-based electrodes, but must be in their original, unopened containers.

D. Low-hydrogen electrodes should never be stored with stainless-steel electrodes.

Correct Answer: D

Question 5

The carbon equivalent formula indicates:

A. The weldability of a steel, based on carbon content.

B. The theoretical carbon content of a steel.

C. Whether preheat will be needed.

D. Whether postweld heat treatment (PWHT) will be needed.

Correct Answer: A

Question 6

What is the major cause of lack of fusion in all welding processes involving carbon steel?

A. Improper welding speed

B. Not using a low hydrogen electrode or improper shielding

C. Inadequate preheat

D. Improper heat input and improper welding technique

Correct Answer: D

Question 7

When verifying that the filler metal selection is appropriate for the base metal being welded, an inspector should consider:

A. Acceptability of physical properties.

B. Need for postweld heat treatment (PWHT).

C. Tensile strength to be higher than the base metal.

D. Chemical composition.

Correct Answer: D

Question 8

Steels usually require both preheat and PWHT if they have a carbon equivalent higher than:

A. 0.50

B. 0.55

C. 0.35

D. 0.45

Correct Answer: D

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API Welding Inspection And Metallurgy (API-577) Free Practice Test