Welding 1 Module 2 Review Questions and Answers | Latest Version 2024/2025 | Correct & Verified

Welding 1 Module 2 Review Questions and Answers | Latest Version 2024/2025 | Correct & Verified What is the main purpose of welding? To join two or more pieces of metal together permanently. Why is proper ventilation important in welding? To prevent inhalation of hazardous fumes and gases. What is the function of a welding torch? To direct heat and create the weld by melting the metal. Why should you wear a welding helmet? To protect your eyes and face from sparks, heat, and harmful radiation. What is a weld puddle? The pool of molten metal formed during welding. 2 How does shielding gas help during welding? It protects the molten weld pool from contamination by the atmosphere. What is the importance of maintaining a clean work area while welding? To reduce fire hazards and ensure a safe workspace. What is slag, and why must it be removed? Slag is a byproduct of flux used in welding, and it must be removed to ensure a clean and strong weld. Why is preheating sometimes necessary before welding? To minimize the risk of cracking and improve weld quality. What causes porosity in a weld? Gas trapped in the molten weld pool due to contamination or improper technique. What is a root pass in welding? The first weld layer that forms the foundation of a multi-pass weld. 3 Why is it important to inspect welding equipment before use? To ensure it is in good condition and avoid safety hazards. What is a tack weld? A small weld used to hold parts in position before full welding. Why should welding cables be checked regularly? To ensure they are not damaged, which could lead to electrical hazards. What is the purpose of a filler rod in welding? To add material to the joint and create a strong weld. Why is controlling the heat input important in welding? To prevent overheating, distortion, and defects in the weld. What is weld penetration? The depth that the weld fuses into the base metal.