Welding and Cutting Module 18: Questions and Answers | Latest Version | 2024/2025 | Correct & Verified
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Welding and Cutting Module 18
Institution
Welding And Cutting Module 18
Welding and Cutting Module 18:
Questions and Answers | Latest Version
| 2024/2025 | Correct & Verified
What is the main purpose of welding in fabrication?
The main purpose of welding is to join two or more metal pieces together by applying heat
and pressure to create a strong bond.
Wha...
Welding and Cutting Module 18:
Questions and Answers | Latest Version
| 2024/2025 | Correct & Verified
What is the main purpose of welding in fabrication?
✔✔ The main purpose of welding is to join two or more metal pieces together by applying heat
and pressure to create a strong bond.
What are the most common materials used in welding?
✔✔ The most common materials used in welding include carbon steel, stainless steel, aluminum,
and various alloys.
What is the difference between welding and cutting in metalworking?
✔✔ Welding involves joining materials together, while cutting involves removing material to
shape or size the workpiece.
What type of welding is used for joining aluminum?
✔✔ Gas Tungsten Arc Welding (GTAW) is commonly used for welding aluminum due to its
precision and cleanliness.
1
, Why is it important to clean the metal surfaces before welding or cutting?
✔✔ Cleaning removes contaminants such as rust, oil, and dirt that could affect the weld quality
or cause defects.
What is the role of shielding gas in welding?
✔✔ Shielding gas protects the weld pool from contamination by atmospheric gases, ensuring a
clean and strong weld.
What is the function of the filler rod in welding?
✔✔ The filler rod is used to add material to the weld pool, helping to fill the joint and strengthen
the weld.
What is a weld bead?
✔✔ A weld bead is the molten metal that solidifies and forms the visible part of the weld after
the welding process.
What is the difference between MIG and TIG welding?
✔✔ MIG welding uses a consumable wire electrode and is typically faster, while TIG welding
uses a non-consumable tungsten electrode and is more precise.
2
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