Welding Module 10 Questions and Answers | Latest Version | 2024/2025 | Correct & Verified

Welding Module 10 Questions and Answers | Latest Version | 2024/2025 | Correct & Verified What happens if you weld too fast? Welding too fast can result in poor penetration, weak welds, and an uneven bead, as the heat may not be properly distributed through the material. What does it mean if a weld has porosity? Porosity in a weld occurs when gas bubbles get trapped in the molten weld pool, leading to holes that can weaken the integrity of the weld. What is the function of a slag hammer in welding? A slag hammer is used to remove the slag that forms on top of the weld, revealing a clean surface and preventing future defects in the weld. Why is it essential to maintain a consistent arc length while welding? Maintaining a consistent arc length ensures steady heat distribution, preventing undercutting or overheating of the weld area, leading to a more uniform and stronger weld. 2 How does welding on a vertical surface differ from welding on a horizontal surface? Welding on a vertical surface requires more control to prevent the molten weld pool from dripping, and may require slower travel speeds and different techniques than horizontal welding. What is the significance of bead overlap in welding? Bead overlap occurs when the weld bead flows over the base material without fusing properly, which weakens the joint and can lead to failure under stress. Why do some welds require post-weld cleaning? Post-weld cleaning removes residual slag, oxide layers, or contamination, improving the appearance and integrity of the weld, and preparing it for further inspection or coating. What happens if the welding voltage is too high? High welding voltage can result in excessive spatter, an unstable arc, and an overly wide or shallow weld bead, weakening the weld joint. How does a welder ensure proper joint fit-up? Proper joint fit-up ensures that the pieces being welded are aligned correctly, reducing gaps, improving the quality of the weld, and ensuring consistent fusion. 3 What is the impact of ambient temperature on welding? Welding in cold environments can cause the weld to cool too quickly, leading to cracks or lack of penetration, while high temperatures can result in excessive distortion. How do you avoid distortion when welding thin materials? To prevent distortion when welding thin materials, use lower heat settings, short weld passes, and work in a way that balances heat across the joint. What role does the welding current play in the welding process? The welding current controls the heat generated during welding, which affects the weld pool size, penetration, and overall quality of the weld. What is the purpose of a back-gouge in welding? A back-gouge is used to remove material from