Question

you should grind off a mushroom - shaped head on a chisel or punch so as to prevent

• mushrooming in your work
• splitting the shank of the tool
• making the tool difficult to hold
• particles of metal from flying when you strike the head with a hammer

student should only use equipment when

• a student wants to
• when a student knows how to operate the tool
• only when given instructor approval

true or false: it is safe to wear prescription glasses as a replacement for approved safety glasses in the shop as eye protection.

• true
• false

a class a fire extinguisher can put out fires caused by:

• electrical fire
• kitchen fire
• common combustible fire
• flammable liquids fire

Explanation:

1. Securing a nut on a tool prevents parts of metal from flying when you strike the head with a hammer. This is a safety - related measure in a workshop setting.
2. Students should only use equipment when given instructor approval to ensure safety and proper use.
3. Prescription glasses are not a safe replacement for approved safety glasses in a shop as they may not provide the same level of impact protection.
4. A class A fire extinguisher is used for common combustible fires such as wood, paper, etc.

Answer:

1. parts of metal from flying when you strike the head with a hammer
2. only when given instructor approval
3. False
4. common combustible fire