Question

chapter 5 auto shop safety 83

1. which of the following cannot cause

electric shock?
(a) a missing ground prong on cord.
(b) using an electric drill on wet floor.
(c) using electric tools with a ground
prong.
(d) none of the above.

1. explain what must be done to prevent

physical injuries.

1. if you are pulling on a wrench as hard as

you can and the fastener does not turn,
what should you do to prevent injury?

1. when lifting heavy objects, always lift with

your ______.
(a) arms
(b) legs
(c) back
(d) none of the above.

1. list 20 general safety rules.

ase-type questions

1. in which auto shop area would an exhaust

system repair most likely be done?
(a) shop stall.
(b) grease rack.
(c) alignment rack.
(d) outside work area.

1. rules to remember when using gasoline

include each of the following except:
(a) store gas in approved containers.
(b) keep gas away from sources of heat.
(c) use oil absorbent to absorb any gas spills.
(d) never use gasoline as a cleaning solvent.

1. which of the following is a possible source

of explosions in an auto shop?
(a) fuel tanks.
(b) car batteries.
(c) welding tanks.
(d) all of the above.

1. asphyxiation can be caused by:

(a) touching a current-carrying wire.
(b) improper lifting techniques.
(c) breathing toxic substances.
(d) none of the above.

Explanation:

Question 6

• Option A: A missing ground prong can lead to electrical faults and shock.
• Option B: Using an electric drill on a wet floor increases the risk of electric shock due to water conductivity.
• Option C: Using electric tools with a ground prong is a safety measure to prevent shock, so it cannot cause electric shock.
• Option D: Since option C is correct, D is incorrect.

To prevent physical injuries in an auto shop:

1. Use proper lifting techniques (lift with legs, not back) for heavy objects.
2. Wear appropriate personal protective equipment (PPE) like safety glasses, gloves, and steel - toed shoes.
3. Keep work areas clean and organized to avoid tripping hazards.
4. Follow safety procedures when using tools (e.g., use guards on power tools, don't misuse tools).
5. Be aware of your surroundings and other workers to avoid collisions.
6. Use proper ventilation when working with chemicals or exhaust fumes.
7. Secure vehicles properly (e.g., use wheel chocks) when working on them.
8. Train on and follow lock - out/tag - out procedures for equipment.
9. Avoid wearing loose clothing or jewelry that can get caught in machinery.
10. Use proper ergonomics when performing repetitive tasks to prevent strain.

If a fastener doesn't turn when pulling hard on a wrench:

1. First, stop pulling to avoid overexerting and causing muscle strain or injuring your back/shoulders.
2. Check if the wrench is the correct size (using the wrong size can make it hard to turn and cause slippage/injury).
3. Consider using a longer wrench or a breaker bar (but ensure it's safe and the fastener/tool can handle the increased torque).
4. You can also try applying a penetrating oil to the fastener to loosen it before attempting to turn again.
5. If it's a bolt, check if it's cross - threaded or damaged, which might require repair or replacement of the fastener.

Answer:

C. Using electric tools with a ground prong.

Question 7