CWS Weld Inspection & Testing Flashcards
6 cards from real CWS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CWS Weld Inspection & Testing flashcards as text
Which AWS qualification document governs the certification of welding inspectors in the United States?
Answer: AWS QC1
AWS QC1 is the Standard for AWS Certification of Welding Inspectors, establishing requirements for CWI, SCWI, and related credentials.
During visual inspection, a supervisor finds porosity in a SMAW weld. Which of the following is the LEAST likely cause?
Answer: Excessive preheat temperature
Excessive preheat actually helps reduce porosity by slowing the cooling rate; damp electrodes, contamination, and poor shielding are primary porosity causes.
What is the purpose of a bend test in weld procedure qualification?
Answer: Evaluate weld soundness and ductility
Bend tests evaluate a weld's soundness and ductility by bending a coupon to a prescribed angle and checking for cracks or open discontinuities.
A CWS supervisor is reviewing liquid penetrant test (PT) results. The PT method can detect which type of defects?
Answer: Surface-breaking discontinuities only
Liquid penetrant testing is limited to detecting surface-breaking discontinuities, as the penetrant must enter an open defect to be revealed by the developer.
When inspecting a full-penetration groove weld on a pressure vessel, which AWS/ASME code primarily governs weld acceptance criteria?
Answer: ASME Section VIII
ASME Section VIII (Rules for Construction of Pressure Vessels) provides weld acceptance criteria for pressure vessel fabrication, while Section IX covers qualification.
What is the correct sequence for visual inspection of a weld?
Answer: Pre-weld, inter-pass, post-weld
Proper visual inspection follows a pre-weld (fit-up, cleanliness), inter-pass (between passes), and post-weld (final) sequence to catch defects at each stage.