Inspection & Quality Control Flashcards
7 cards from real AWS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Inspection & Quality Control flashcards as text
Which NDE method is most effective for detecting tight surface cracks in non-ferromagnetic materials like austenitic stainless steel?
Answer: Liquid penetrant testing
Liquid penetrant testing is effective on all non-porous materials regardless of magnetic properties, making it the preferred method for austenitic stainless steel surface crack detection.
What does 'arc strike' refer to as an inspection concern in welded fabrications?
Answer: An unintentional arc contact outside the weld zone that can cause local hardening or cracking
Arc strikes outside the weld zone create localized heat-affected areas that can cause hardening, cracking, or stress concentrations in the base metal.
In welding inspection, what is 'burn-through'?
Answer: A hole completely through the base metal caused by excessive welding heat
Burn-through is a hole formed completely through the weld deposit or base metal due to excessive heat input, particularly in thin materials.
When qualifying a welder for plate welding, passing a 3G position test qualifies the welder to weld in which positions?
Answer: Flat, horizontal, and vertical
Qualification in the 3G (vertical) position qualifies the welder to weld in the flat (1G), horizontal (2G), and vertical (3G) positions per AWS D1.1.
What is the primary purpose of a 'hold point' in a welding inspection plan?
Answer: To require inspector approval before work proceeds past a specific stage
A hold point is a mandatory inspection stage at which work must stop and an inspector must review and approve conditions before the next operation can proceed.
What type of weld testing involves removing a sample from a production weld joint and testing it to verify ongoing compliance with the WPS?
Answer: Production weld testing
Production weld testing involves destructive or nondestructive examination of specimens taken from actual production welds to verify the welding process is consistently producing quality welds.
Which visual inspection criterion addresses the flatness or profile of a fillet weld face?
Answer: Convexity and concavity limits
AWS codes specify maximum convexity (excess weld metal above a flat face) and maximum concavity (depression below a flat face) to ensure proper fillet weld geometry and strength.