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Free API API-577 Practice Exam with Questions & Answers | Set: 2

Questions 11

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

Options:
A.

Chemical composition.

B.

Tensile strength to be higher than the base metal.

C.

Acceptability of physical properties.

D.

Need for postweld heat treatment (PWHT).

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Questions 12

What is the most appropriate action when an inspector finds improperly marked filler materials?

Options:
A.

Accept them if nonessential variable.

B.

Reject them.

C.

Re-qualify the WPS.

D.

Accept them if the markings are corrected.

Questions 13

The weld symbol represents which type of weld groove?

API-577 Question 13

Options:
A.

Parallel

B.

Scarf

C.

Flare

D.

Bevel

Questions 14

For GMAW welding, the last number of the electrode identifies the:

Options:
A.

Chemical composition.

B.

Strength of the electrode.

C.

Coating characteristics.

D.

Operating characteristics.

Questions 15

Hardness testing of production welds and the HAZ requires test areas to be:

Options:
A.

Ground to a smooth contour.

B.

Cleaned down to the bare metal.

C.

Cleaned to remove surface scale and flux.

D.

Clean, flat area or even flush with the base metal.

Questions 16

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

Options:
A.

GMAW-S

B.

GMAW-SF

C.

FCAW

D.

FCAW-SW

Questions 17

Rules for qualifying welding operators using radiography on a production weld require what minimum weld length to be examined?

Options:
A.

6 in. (150 mm)

B.

12 in. (300 mm)

C.

24 in.(600 mm)

D.

36 in. (900 mm)

Questions 18

How much should each pass of the transducer overlap the previous path during a weld scan?

Options:
A.

5% of the transducer element dimension.

B.

10% of the transducer element dimension.

C.

15% of the transducer element dimension.

D.

20% of the transducer element dimension.

Questions 19

What is a sensitized microstructure in austenitic stainless steels?

Options:
A.

An area next to the heat-affected zone that has suffered some softening and loss of strength.

B.

The microstructure of the weld that has been melted and will therefore have properties more like a casting than the base metal.

C.

An area near the heat-affected zone affected by welding that may experience intergranular corrosion.

D.

The high residual stress zone adjacent to the weld fusion line that will have higher hardness than the weld or base material.

Questions 20

Heating a round bar to an elevated temperature and then quenching one end is a test method to determine:

Options:
A.

Hardenability.

B.

Temper embrittlement.

C.

Heat treatability.

D.

Thermal conductivity.

Exam Code: API-577
Certification Provider: API
Exam Name: Welding Inspection and Metallurgy Exam
Last Update: Jul 13, 2025
Questions: 110

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