Welding 1 Final Exam Questions and Answers | Latest Version | 2024/2025 | Graded A+
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Module
Welding 1
Institution
Welding 1
Welding 1 Final Exam Questions and
Answers | Latest Version | 2024/2025 |
Graded A+
What happens if you start welding with a contaminated electrode?
The weld quality is compromised, leading to weak joints and potential defects.
Why does a welder preheat thick metal before starting?
To r...
Welding 1 Final Exam Questions and
Answers | Latest Version | 2024/2025 |
Graded A+
What happens if you start welding with a contaminated electrode?
✔✔The weld quality is compromised, leading to weak joints and potential defects.
Why does a welder preheat thick metal before starting?
✔✔To reduce thermal shock and ensure better weld penetration.
What is the role of the puddle in welding?
✔✔It allows the welder to control the flow and fusion of molten metal.
How can you ensure smooth bead consistency?
✔✔By maintaining steady hand movement and consistent arc length.
What is a "cold lap" in welding?
✔✔A defect where the weld metal fails to fuse properly with the base metal.
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, Why should a welder avoid welding over painted surfaces?
✔✔Paint can contaminate the weld, causing porosity and weak bonding.
What does the term "root gap" refer to in welding?
✔✔The space between two workpieces to ensure full penetration.
Why do some welds require post-weld heat treatment?
✔✔To relieve stress and improve the mechanical properties of the weld.
What happens if you increase the welding speed excessively?
✔✔The weld becomes shallow and weak due to insufficient heat input.
Why is slag removal crucial before applying a second weld pass?
✔✔To prevent defects and ensure proper bonding between layers.
How can you prevent undercutting on the edges of a weld?
✔✔By adjusting the angle and speed of the electrode during welding.
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