Practical Visual Inspection Flashcards
7 cards from real CWI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Practical Visual Inspection flashcards as text
When inspecting a groove weld with a specified minimum reinforcement, the CWI should verify that the crown height:
Answer: Meets the minimum required and does not exceed the maximum allowed by the applicable code
Weld reinforcement must meet minimum requirements for complete fill while not exceeding maximum limits, as excessive reinforcement can concentrate stress.
Arc strikes outside the weld area are considered a defect primarily because they:
Answer: Can create hard, brittle spots and stress risers in the base metal
Arc strikes create localized rapid heating and quenching that can produce hard martensite and microcracks in the base metal, especially in high-carbon steels.
A CWI is examining a pipe weld root pass from the ID (inside diameter). The root bead should be checked for:
Answer: Burn-through, incomplete fusion, and root concavity
The root pass ID inspection checks for burn-through (excessive melt-through), lack of fusion, and root concavity, all of which are rejectable discontinuities.
What does the term 'cold lap' refer to in visual weld inspection?
Answer: Incomplete fusion between a weld bead and the base metal or previous bead
Cold lap (a form of overlap/incomplete fusion) occurs when the molten weld metal rolls over the base metal without achieving fusion.
When visually inspecting weld spatter, a CWI should be concerned if the spatter:
Answer: Interferes with required NDE or violates code acceptance criteria
Spatter is evaluated based on whether it impairs required nondestructive examination or violates specific code acceptance criteria for the application.
During inspection of a multi-pass weld, the inspector finds a crack in an intermediate pass that was covered by subsequent passes. What action is required?
Answer: Reject the weld — interpass cracks must be repaired before continuing
Any crack discovered during interpass inspection must be repaired before depositing additional weld passes, as buried cracks are unacceptable.
What is the purpose of a weld map or weld identification system during visual inspection?
Answer: To track each weld's location, welder, process, and inspection results for traceability
Weld maps provide traceability by documenting each weld's location, the qualified welder, process used, and inspection status for quality records.