Welding Level 2, Module 4 Questions and Answers | Latest Version | 2024/2025 | Correct & Verified
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Module
Welding Level 2, Module 4
Institution
Welding Level 2, Module 4
Welding Level 2, Module 4 Questions
and Answers | Latest Version | 2024/2025
| Correct & Verified
What is the primary purpose of preheating a material before welding?
To reduce the risk of thermal shock and cracking during the welding process
What does "welding slag" do during the weldi...
Welding Level 2, Module 4 Questions
and Answers | Latest Version | 2024/2025
| Correct & Verified
What is the primary purpose of preheating a material before welding?
✔✔ To reduce the risk of thermal shock and cracking during the welding process
What does "welding slag" do during the welding process?
✔✔ It forms a protective layer over the molten weld pool, preventing contamination from the
atmosphere
What is the significance of a root pass in a weld joint?
✔✔ It is the first layer of weld metal that establishes the foundation for additional passes
What is the function of a weld bevel?
✔✔ To prepare the edge of the metal for a proper weld joint and ensure better penetration
What is the primary cause of weld cracking?
✔✔ Rapid cooling, improper heat control, or poor material selection
1
,What does the term "weld reinforcement" refer to?
✔✔ The excess weld metal that forms above the surface of the base metal
What is the role of a gas tungsten arc welding (GTAW) torch?
✔✔ To supply heat to melt the base metal and provide the filler material for welding
What does "overwelding" mean?
✔✔ Applying too much weld metal, resulting in an excessive and unnecessary build-up of
material
What is a "fillet weld" used for?
✔✔ To join two pieces of metal at a right angle, typically in corner or edge joints
What is the purpose of a post-weld inspection?
✔✔ To ensure the weld meets quality standards and does not contain defects
What is a "butt joint" in welding?
2
, ✔✔ A joint where two pieces of metal are aligned edge-to-edge for welding
What is the function of the "arc length" in welding?
✔✔ To maintain the correct distance between the electrode and the workpiece for a stable arc
What is the purpose of a "weldment" in fabrication?
✔✔ The final assembly of welded parts after the welding process is completed
What does "heat input" refer to in welding?
✔✔ The amount of heat energy applied to the workpiece, which affects weld quality and
material properties
What is the effect of high heat input during welding?
✔✔ It can cause distortion, excessive spatter, and weakened material properties
What is the function of the "weld pool" in welding?
✔✔ The molten metal formed during the welding process, which cools to form the final weld
3
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