Electrical Safety (Awareness Only)

1.

1 point

Electrical explosions may occur when:

the voltage in a circuit exceeds the carrying capacity of the wiring, causing electricity to arc through the air looking for a shorter path to ground

the amperage in a circuit exceeds the carrying capacity of the wiring, causing the wiring to heat up and destroying the wire’s insulation

flammable liquids or vapors are explosively ignited by contact with electrical current

all of the above

both (a) and (c)

2.

1 point

High voltage current is very dangerous, but high amperage current is not.

True

False

3.

1 point

When giving first aid for electrical burns, you should:

try to cool the burn with water or ice

keep the victim comfortable

bandage the burn tightly

put butter on the burn

4.

1 point

If you cannot safely cut the power to a circuit that is shocking someone else, you should do what?

wait for the fire department to cut power to the building

take the risk and shove your co-worker off the circuit

position yourself on a non-conducting surface and use a non-conductive object to push your co-worker away from the circuit

all of the above

5.

1 point

In a piece of plug-connected electrical equipment, the _________________ carries current from the source to the load.

“ground” wire

“live” wire

"hot" wire

“neutral” wire

6.

1 point

Equipment that is designed so that the switches and other parts that may arc are fully enclosed and cannot come into contact with a potentially hazardous environment will be labeled ______________________.

“intrinsically safe”

“double-insulated”

“explosion-proof”

none of the above

either (a) or (c)

7.

1 point

A(n) _____________________ is a built-in weak point in a circuit that is designed to prevent fires.

fuse

circuit breaker

overcurrent protection device

all of the above

both (a) and (b)

8.

1 point

The “ABCs” of first aid for electrical emergencies or injuries are:

Ask, Bandage, and Call for help

Assist with Breathing and CPR

Airway, Breathing, and Circulation

Airway, Bleeding, and Cauterization

9.

1 point

Most current flowing from batteries is _________________ current.

direct

high-voltage

conductive

impedance

alternating

10.

1 point

Moist environments create a shock and electrocution hazard because:

water is an oxidizer

water is a conductor

water or water vapor can be both inside and outside of the housing of a piece of electrical equipment

none of the above

both (b) and (c)