API-577 Exam Questions Instant Access - No Installation Required

Question 1

What GMAW welding process uses carbon dioxide as the shielding gas, and is limited to the flat and horizontal position?

ASpray transfer

BPulsed transfer

CGlobular transfer

DShort circuiting transfer

Answer : C

Question 2

Which of the following statements is true?

APQRs qualified on P8 materials also qualify for P1 materials.

BWelding procedures must be supported by more than one PQR.

CAll PQRs must be qualified with impact testing.

DOne PQR may support several WPSs.

Answer : D

Question 3

Crater cracks typically occur:

AIn weld metal at the point where the arc terminates.

BIn the HAZ at the point where the arc initiates.

CIn weld metal at the point where the arc initiates.

DIn the HAZ at the point where the arc terminates.

Answer : A

Question 4

In hardness testing of carbon steel weldment specimens, there is an approximate relationship between hardness and:

AToughness

BTensile strength

CDuctility

DYield strength

Answer : B

Question 5

What is a discontinuity?

AAn interruption in the normal physical structure of a material.

BAn imperfection which is detectable with NDE.

CThe response or evidence from the application of NDE.

DA departure of a quality characteristic from its intended condition.

Answer : A

Question 6

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

AInterpass temperature control is not needed.

BThere is less susceptibility to cracking from contaminants.

CThere is less susceptibility to lack of fusion.

DThe weld pool tends to be sluggish.

Answer : D

Question 7

General awareness of metallurgy is important to the welding inspector because:

AWelding processes can affect both mechanical and corrosion properties of a weldment.

BThe crystalline structure of base metals affects the resulting structure of the weld.

CPhysical properties of the final weldment can be significantly affected by preheat and postweld heat treatment (PWHT).

DA thorough knowledge of weld metal structures is necessary to understand weldability.

Answer : A

API Welding Inspection and Metallurgy API-577 Exam Questions