API-577 Exam Questions Instant Access - No Installation Required

Question 1

What is a sensitized microstructure in austenitic stainless steels?

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

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

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

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

Answer : C

Question 2

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 3

To reduce exposure to moisture of low-hydrogen electrodes after they have been removed from the manufacturer's packaging, they should be stored:

AUnder low humidity conditions.

BIn warm holding ovens.

CIn sealed plastic containers.

DIn tightly sealed ovens.

Answer : B

Question 4

What does an AWS classification number identify?

AElectrode diameter and strength

BElectrodes and welding rods

CChemical composition of the deposited weld metal

DBase metal and group number

Answer : B

Question 5

Base metals are assigned P-numbers by the ASME Code, Section IX to reduce the number of:

ARequired welding procedure specifications.

BRequired welding procedure qualifications.

CRequired procedure and performance qualifications.

DRequired mechanical tests.

Answer : C

Question 6

What is(are) the most appropriate action(s) to prepare an in-service carbon steel piping system that has been in caustic service for welding?

ANeutralize and clean the surface within 6 in. (150 mm) of weld bevels

BSteam out the piping system and dry

CVerify with pH paper that any surface liquid is ''basic'

DGrind the surfaces near the bevel to remove contaminants

Answer : A

Question 7

According to the PQR 8025, does the thickness range qualified concur with the thickness range as stated on the WPS 802?

AYes, but only for thicknesses greater than .280'

BNo, the material thickness on the PQR should be .375'

CYes, the PQR qualifies the ranges as stated on the WPS

DNo, the PQR thickness should have been .560'

Answer : C

API Welding Inspection and Metallurgy API-577 Exam Questions