18 Questions
What type of discontinuities can be detected through visual examination after welding?
Surface discontinuities in the weld and base metal
What is the primary purpose of inspection intervals?
To identify weld defects
According to ASME SEC VIII Div 1, what is a requirement for butt-welded joints?
Complete penetration and full fusion
What is evaluated in accordance with the applicable code or specification during acceptance criteria?
All discontinuities found
What is the purpose of non-destructive inspection?
To provide additional information about weld quality
What type of discontinuities can be classified as handling damage?
Gouges and scratches
What is the primary reason for ensuring the surface of welds is sufficiently free from defects?
To permit proper interpretation of radiographic and other required nondestructive examinations
What is the maximum reduction in thickness due to the welding process that is acceptable?
1/32 in. or 10% of the nominal thickness of the adjoining surface
When a single-welded butt joint is made using a backing strip, which side of the weld must meet the requirement for reinforcement?
The side opposite the backing strip
Why is it necessary to add weld metal as reinforcement on each face of the weld?
To ensure the weld grooves are completely filled
What is the primary purpose of comparing a radiographic image to the actual weld surface?
To determine the acceptability of the weld surface condition
What is the primary concern related to weld defects such as coarse ripples, grooves, overlaps, and abrupt ridges and valleys?
They can interfere with proper interpretation of radiographic and other required nondestructive examinations
What is the primary reason for conducting visual inspection prior to welding?
To eliminate conditions that tend to cause weld defects
What is the most critical pass in a multi-pass weld from the standpoint of weld soundness?
The root pass
What should be verified during the welding process?
All of the above, plus preheat and inter-pass temperatures
Who determines the extent of the inspection?
Either the project engineer or the contract documents
What is the purpose of inspecting the edge preparation and dimensions?
To ensure proper edge preparation and dimensions
What is the purpose of verifying the correctness of materials?
To ensure the correct materials are used
Test your knowledge of welding quality control procedures, including visual examination, surface discontinuities, and dimensional accuracy. Learn how to detect and evaluate weld defects and assess weld quality.
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