Welder Red Seal · Question
According to CSA Z462 and other workplace safety standards, why is a 100% cotton or fire-resistant (FR) shirt a required piece of PPE for welders?
Synthetic fabrics have a low melting point. When hit by sparks or intense heat, they can instantly melt and fuse to the wearer's skin, causing severe burns. Nat
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Question: According to CSA Z462 and other workplace safety standards, why is a 100% cotton or fire-resistant (FR) shirt a required piece of PPE for welders?
Answer options:
- It provides the best insulation against cold weather ✅ Synthetic fabrics like polyester or nylon can melt and stick to the skin when exposed to heat or sparks
- Cotton is waterproof and protects against steam burns
- It is the most professional looking and meets company dress code
Correct answer: Synthetic fabrics like polyester or nylon can melt and stick to the skin when exposed to heat or sparks
Explanation: Synthetic fabrics have a low melting point. When hit by sparks or intense heat, they can instantly melt and fuse to the wearer's skin, causing severe burns. Natural fibres like cotton or wool, and specially treated FR fabrics, will char but not melt.
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Question explanations
- A welder is fabricating a pressure vessel component using FCAW-G with an E70T-1 wire. The procedure specifies
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