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17 Cards in this Set

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601. What types of hazards threaten our workplace?


1. Name the types of hazards that threaten our workplace.
1. Fire
2. Chemical
3. Electrical
4. Noise
Unit 1: Telephone Systems Safety

Pg. 1-1
601. What types of hazards threaten our workplace?


2. Why is smoking not allowed except in authorized areas?
Sparks or burning material can ignite flammables or combustible gases such as battery fumes. In addition, smoke is an impurity that damages telephone systems equipment.
Unit 1: Telephone Systems Safety

Pg. 1-1
601. What types of hazards threaten our workplace?


3. Some solvents we use for cleaning remove the natural oils and leave the skin dry and broken. What possible side effect does that expose us to?
If the skin is dry and broken, it is more open to bacterial invasion.
Unit 1. Telephone Systems Safety

Pg. 1-1
601. What types of hazards threaten our workplace?


4. What precautions should you take when using toxic chemicals?
Always use them in a well-ventilated area when possible or wear some type of respiratory device. Wear rubber gloves, an apron, and a face shield or goggles to protect yourself from direct contact with toxic chemicals.
Unit 1. Telephone Systems Safety

Pg. 1-2
601. What types of hazards threaten our workplace?


5. We've said that current as low as 50 milliamperes can cause fatal electrical shock. What other factors determine the severity of the electrical shock?
In addition to current, the severity of the shock depends upon the time of exposure, the person's physical condition, and the working conditions (a wet floor and damp hands can provide a path for a heavey current).
Unit 1. Telephone Systems Safety

Pg. 1-2
601. What types of hazards threaten our workplace?


6. List the effects of electrical shock.
Severe contraction of the chest muscles, which can interfere with breathing to the extent that the victim dies of asphyxiation; temporary paralysis of the nerve center that controls breathing, which may result in death by asphyxiation; a natural reaction to shock is to push oneself violently away from the source of the shock, causing the victim to fall or strike some object; current passing through the chest may cuase an erratic heartbeat or cardiac arrest.
Unit 1. Telephone Systems Safety

Pg. 1-2
601. What types of hazards threaten our workplace?


7. What is meant by "arcing"?
Arcing occurs when a metal object, such as a tool, comes in contact with a high current source and ground and conducts the high current to ground.
Unit 1. Telephone Systems Safety

Pg. 1-2
601. What types of hazards threaten our workplace?


8. Why are you less likely to recognize noise damage than other types of injury you might suffer on the job?
Noise damage can cause hearing loss, which tends to be very gradual, and is less noticeabble than other types of injuries.
Unit 1. Telephone Systems Safety

602. Safety precautions for working on energized equipment


1. Why was the AFOSH program established?
To protect all Air Force people from occupational injuries and illnesses.
2. Name the two categories of human factors that can contribute to mishap?
Mental and physical
602. Safety precautions for working on energized equipment


3. Why should you remove fingers, rings, watches, or other conductive objects before beginning work on or near any electrical equipment?
They can increase the risk of electrical shock or become the source of potentially severe burns if they come in contact with energized circuits.
602. Safety precautions for working on energized equipment


4. Why should you know the location and proper operation of all power control switches and circuit breakers for any equipment before working on it?
If there is an emergency condition such as a fire or electric shock, you'll need to cut the power to the equipment quickly. You won't have time to waste trying to locate the power control switches.
602. Safety precautions for working on energized equipment


5. What type of ladder should never be used around electrical equipment?
Metal or metal-reinforced wooden ladders.
602. Safety precautions for working on energized equipment


6. What type of vacuum cleaner should you use when cleaning electronic equipment? Why?
A vacuum cleaner with a nonconductive nozzle; metal nozzle vacuums could cause an electric shock hazard or significant equipment damage.
602. Safety precautions for working on energized equipment


7. When are safety observers required when working on electronic equipment?
When installing or repairing C-E systems which may expose you to hazards associated energized equipment, high voltage circuits, or voltage capable of producing a current of 50 milliamperes or more.
602. Safety precautions for working on energized equipment


8. What precautions should you take before removing and replacing faulty terminal or distribution frame protectors? Why?
Measure the voltage across the protector prior to removing it to ensure dangerous voltages are not still present on the line.
602. Safety precautions for working on energized equipment


9. Name two precautions you should take when replacing fuses and circuit breakers.
Replace fuses and circuit breakers with the type specified by the manufacturer and use insulated fuse pullers.