Question

1. and wool clothes are durable and fire resistant. would be the next best option. (1 point) leather, synthetic leather, cotton synthetic cotton polyester, synthetic 22. materials can melt and cause severe burns. do not wear them when welding! (1 point) wool leather cotton synthetic 23. boots should be worn when welding. (1 point) wool rubber leather plastic 24. a welding protects your eyes from radiation exposure and your face and neck from burns. use the correct shade lens for the welding process. we will use a shade in shop. (1 point) glasses 9 glasses 10 face shield 5 helmet 10

Explanation:

• For question 21: Leather is durable and somewhat fire - resistant, and synthetic materials can also have good durability. Wool is already mentioned as durable and fire - resistant, and synthetic is a common alternative.
• For question 22: Synthetic materials have low melting points and can melt and cause burns during welding due to high heat. Wool, leather, and cotton have higher heat - resistance compared to synthetics in this context.
• For question 23: Leather boots are suitable for welding as they are heat - resistant and provide protection. Wool is not suitable for boots in a welding environment, rubber may not be heat - resistant enough, and plastic will melt.
• For question 24: A welding helmet protects eyes from radiation exposure and face and neck from burns. Shade 10 is a common shade used for many welding processes.

Answer:

1. leather, synthetic
2. synthetic
3. leather
4. helmet, 10