Welding Level 2, Module 8 Questions and Answers | Latest Version | 2024/2025 | Correct & Verified
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Welding Level 2, Module 8
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Welding Level 2, Module 8
Welding Level 2, Module 8 Questions
and Answers | Latest Version | 2024/2025
| Correct & Verified
What is the purpose of a welding procedure specification (WPS)?
A WPS provides detailed instructions to ensure welds meet specific quality and safety
standards.
Why is preheating often req...
Welding Level 2, Module 8 Questions
and Answers | Latest Version | 2024/2025
| Correct & Verified
What is the purpose of a welding procedure specification (WPS)?
✔✔ A WPS provides detailed instructions to ensure welds meet specific quality and safety
standards.
Why is preheating often required before welding certain metals?
✔✔ Preheating reduces the risk of cracking by minimizing thermal stress and ensuring even heat
distribution.
What is the role of flux in welding?
✔✔ Flux shields the weld from atmospheric contamination and improves the quality of the weld
joint.
How does a welder determine the correct amperage for a specific weld?
✔✔ Amperage is determined by the thickness of the material, type of electrode, and welding
process.
1
, What is the purpose of a root pass in welding?
✔✔ A root pass ensures proper penetration and establishes the foundation for subsequent weld
layers.
Why is proper ventilation important when welding?
✔✔ Proper ventilation removes harmful fumes and gases, protecting the welder's health.
What causes porosity in a weld?
✔✔ Porosity is caused by trapped gas pockets due to contamination, inadequate shielding, or
improper technique.
What is the significance of using a backing strip in welding?
✔✔ A backing strip provides support for the root pass and ensures complete joint penetration.
Why is it necessary to clean the base metal before welding?
✔✔ Cleaning removes contaminants like rust, oil, and dirt, which can weaken the weld.
What is the role of post-weld heat treatment?
2
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