CWS CWS Weld Inspection & Testing 2

Question 1

Which AWS qualification document governs the certification of welding inspectors in the United States?

Accepted Answer

AWS QC1

Answer

AWS QC1 is the Standard for AWS Certification of Welding Inspectors, establishing requirements for CWI, SCWI, and related credentials.

Question 2

During visual inspection, a supervisor finds porosity in a SMAW weld. Which of the following is the LEAST likely cause?

Accepted Answer

Excessive preheat temperature

Answer

Excessive preheat actually helps reduce porosity by slowing the cooling rate; damp electrodes, contamination, and poor shielding are primary porosity causes.

Question 3

What is the purpose of a bend test in weld procedure qualification?

Accepted Answer

Evaluate weld soundness and ductility

Answer

Bend tests evaluate a weld's soundness and ductility by bending a coupon to a prescribed angle and checking for cracks or open discontinuities.

Question 4

A CWS supervisor is reviewing liquid penetrant test (PT) results. The PT method can detect which type of defects?

Accepted Answer

Surface-breaking discontinuities only

Answer

Liquid penetrant testing is limited to detecting surface-breaking discontinuities, as the penetrant must enter an open defect to be revealed by the developer.

Question 5

When inspecting a full-penetration groove weld on a pressure vessel, which AWS/ASME code primarily governs weld acceptance criteria?

Accepted Answer

ASME Section VIII

Answer

ASME Section VIII (Rules for Construction of Pressure Vessels) provides weld acceptance criteria for pressure vessel fabrication, while Section IX covers qualification.

CWS - Certified Welding Supervisor Practice Test

CWS - Certified Welding Supervisor Practice Test

CWS CWS Weld Inspection & Testing 2