Weld Quality Questions and Answers | Latest Version | 2024/2025 | 100% Pass
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Module
Weld Quality
Institution
Weld Quality
Weld Quality Questions and Answers |
Latest Version | 2024/2025 | 100% Pass
What is the impact of atmospheric moisture on weld quality?
Moisture introduces hydrogen into the weld, causing porosity and potential cracking.
Why should welding equipment be calibrated regularly?
To ensure consi...
Weld Quality Questions and Answers |
Latest Version | 2024/2025 | 100% Pass
What is the impact of atmospheric moisture on weld quality?
✔✔Moisture introduces hydrogen into the weld, causing porosity and potential cracking.
Why should welding equipment be calibrated regularly?
✔✔To ensure consistent and accurate settings for high-quality welds.
How does root gap size influence weld penetration?
✔✔Too small a gap reduces penetration, while too large a gap can cause burn-through.
What is the purpose of a weld reinforcement cap?
✔✔To provide additional strength and ensure the joint withstands stress.
Why is back purging necessary for some welding applications?
✔✔It protects the backside of the weld from oxidation, ensuring better quality.
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, How does excessive weld overlap affect the structural integrity of a joint?
✔✔It can trap slag and reduce the effective bonding area, weakening the joint.
Why might a welder use a peening hammer on a completed weld?
✔✔To relieve stresses and improve fatigue resistance in the weld.
What role does a shielding gas mixture play in weld appearance?
✔✔It influences bead shape, spatter levels, and the presence of defects.
How can inconsistent travel speed affect a weld's strength?
✔✔It creates uneven heat input, leading to weak or distorted sections in the weld.
What does an ultrasonic test reveal about a weld?
✔✔It detects internal defects like cracks, porosity, or lack of fusion.
Why is a pre-weld checklist important?
✔✔To ensure all equipment, materials, and safety measures are ready for a quality weld.
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