Electrical Emergencies: Stay Safe and Prepared

Question 1

Which of the following is NOT a common cause of electrical emergencies?

Accepted Answer

Lack of proper ventilation

Answer

Overloaded circuits

Answer

Faulty wiring and connections

Question 2

Which of the following is NOT a common type of electrical emergency covered in this unit?

Accepted Answer

Earthquakes

Answer

Electrical fires

Answer

Electrical shocks

Answer

Electrical explosions

Question 3

When responding to an electrical fire, the first step should be to:

Accepted Answer

Turn off the power at the breaker panel

Answer

Call 911

Answer

Use water to extinguish the fire

Answer

Attempt to put out the fire with a fire extinguisher

Question 4

To ensure safety around downed power lines, it is recommended to maintain a distance of:

Accepted Answer

As far as possible

Answer

10 feet

Answer

20 feet

Answer

30 feet

Question 5

When responding to an electrical fire, which action should you avoid?

Accepted Answer

Using water to extinguish the fire

Answer

Contacting emergency services (e.g., 911)

Answer

Disconnecting the power source if it's safe to do so

Question 6

Which of the following is NOT considered an electrical emergency?

Accepted Answer

Power outage

Answer

Electrical fire

Answer

Electrical shock

Answer

Electrical explosion

Question 7

What is the proper CPR procedure for an electrocuted victim?

Accepted Answer

Mouth-to-mouth resuscitation and chest compressions.

Answer

Mouth-to-mouth resuscitation only.

Answer

Chest compressions only.

Answer

Applying an external defibrillator.

Question 8

Which of the following is an unsafe electrical practice?

Accepted Answer

Working on live circuits.

Answer

Wearing proper protective gear.

Answer

Using insulated tools.

Answer

Following electrical codes.

Question 9

What is the recommended safe distance to maintain from downed power lines?

Accepted Answer

50 feet.

Answer

10 feet.

Answer

20 feet.

Answer

30 feet.

Question 10

What electrical emergency involves a sudden, uncontrolled release of energy, often causing a loud noise or explosion?

Accepted Answer

Electrical explosion

Answer

Electrical fire

Answer

Electrical shock

Question 11

When responding to an electrical shock victim, what is the most critical and immediate action to take?

Accepted Answer

Break the electrical circuit by turning off the power source.

Answer

Call for emergency medical services (911).

Answer

Check the victim's breathing and pulse.

Answer

Begin CPR if the victim is unresponsive and not breathing.

Question 12

When responding to an electrical fire, which type of fire extinguisher is most appropriate?

Accepted Answer

Dry chemical fire extinguisher

Answer

Water hose

Answer

Sand

Answer

Wet cloth

Question 13

Why is water dangerous to use when extinguishing an electrical fire?

Accepted Answer

Water conducts electricity, posing a risk of electrocution.

Answer

Water is not effective in putting out electrical fires.

Answer

Water creates a slippery hazard.

Answer

Water can damage electrical equipment further.

Question 14

When encountering an electrocuted victim, what should be your initial action?

Accepted Answer

Ensure your safety, then turn off the source of electricity.

Answer

Start CPR if necessary.

Answer

Check for a pulse.

Answer

Move the victim to safety.

Question 15

Which of the following is a common symptom of an electrical shock?

Accepted Answer

Uncontrollable muscle contractions

Answer

Blurred vision

Answer

Nausea

Answer

Headache

Question 16

What is the primary purpose of a ground fault circuit interrupter (GFCI)?

Accepted Answer

To protect against electrocution by detecting and interrupting ground faults.

Answer

To detect electrical fires.

Answer

To improve circuit efficiency.

Answer

To prevent electrical surges.

Question 17

When inspecting electrical equipment for potential hazards, what should be carefully examined?

Accepted Answer

Frayed wires, damaged insulation, and loose connections.

Answer

Rust and corrosion (on non-current-carrying metal parts)

Answer

Scratches on the equipment surface

Question 18

What is the significance of the National Electrical Code (NEC)?

Accepted Answer

Establishes safety standards for the installation and maintenance of electrical systems.

Answer

Regulates the sale and distribution of electrical products.

Answer

Provides training for electrical professionals.

Question 19

What is a key benefit of receiving electrical safety training?

Accepted Answer

It reduces the risk of accidents and injuries from electrical hazards.

Answer

Improved customer satisfaction

Answer

Increased productivity

Answer

Enhanced reputation

Question 20

What is the leading cause of electrical fires in workplaces?

Accepted Answer

Overloading electrical circuits

Answer

Arcing faults

Answer

Lightning strikes

Answer

Electrostatic discharge

Question 21

Which of the following is a physical manifestation of an electrical shock?

Accepted Answer

Burns

Answer

Headache

Answer

Shortness of breath

Answer

Nausea

Question 22

What is the main hazard associated with electrical explosions?

Accepted Answer

Shrapnel

Answer

Fire

Answer

Smoke

Answer

Electric shock

Question 23

What is the primary purpose of conducting an electrical safety audit?

Accepted Answer

Identify and mitigate electrical hazards

Answer

Document electrical equipment

Answer

Train employees on electrical safety

Answer

Investigate electrical accidents

Question 24

What is the main purpose of a ground fault circuit interrupter (GFCI)?

Accepted Answer

Detect and interrupt electrical current to prevent electric shock

Answer

Improve energy efficiency

Answer

Protect against voltage surges

Answer

Suppress electrical fires

Question 25

Which of the following is NOT a potential electrical hazard?

Accepted Answer

Overheating engine

Answer

Electrical fire

Answer

Explosion

Answer

Electrical shock

Question 26

Which type of electrical shock is the most severe and potentially fatal?

Accepted Answer

Electrocution

Answer

Arc fault

Answer

Ground fault

Answer

Contact shock

Question 27

What is the root cause of most electrical explosions?

Accepted Answer

Arcing faults

Answer

Faulty wiring

Answer

Overheating equipment

Answer

Loose connections

Question 28

What should you do if you experience a tingling sensation when touching an electrical appliance?

Accepted Answer

Unplug the device and contact a qualified electrician

Answer

Try to fix the problem yourself

Answer

Ignore it

Answer

Call the fire department

Question 29

What is the safest way to disconnect an electrical wire from a terminal?

Accepted Answer

Use insulated pliers to grasp the wire and pull straight back

Answer

Twist the wire and pull it off

Answer

Cut the wire with wire cutters

Answer

Use your bare hands to pull on the wire

Question 30

Which of the following is NOT a symptom of an electrical shock?

Accepted Answer

Nausea

Answer

Muscle spasms

Answer

Loss of consciousness

Answer

Burns

Question 31

What is the primary function of grounding in an electrical system?

Accepted Answer

To provide a low-resistance path for fault currents and prevent electrical shocks

Answer

To protect against overloads

Answer

To increase the voltage of the system

Answer

To reduce the flow of electricity

Question 32

When administering first aid to a victim of an electrical shock, what is the initial step?

Accepted Answer

Check for breathing and pulse, and initiate CPR if necessary

Answer

Provide the victim with water

Answer

Apply a cold compress to the affected area

Question 33

What type of electrical hazard arises from a faulty or loose electrical connection?

Accepted Answer

Electrical arcing

Answer

Electrical shock

Answer

Electrical explosion

Answer

Electrical fire

Question 34

What is the primary function of a ground fault circuit interrupter (GFCI)?

Accepted Answer

To safeguard against electrical shock by disrupting the electrical flow in case of a fault

Answer

To prevent electrical fires

Answer

To protect against electrical explosions

Question 35

What is the proper sequence of steps when safely disconnecting an electrical appliance?

Accepted Answer

Power off the appliance, unplug it, and allow capacitors to discharge

Answer

Unplug the appliance without turning it off

Answer

Turn off the appliance but leave it plugged in

Question 36

Which set of actions is most effective in preventing electrical fires in the workplace?

Accepted Answer

Adhering to electrical safety guidelines, maintaining electrical equipment, and conducting regular electrical inspections

Answer

Avoiding the use of extension cords

Question 37

A frayed electrical cord is an indication of:

Accepted Answer

A potential electrical hazard.

Answer

Nothing to be concerned about.

Answer

A minor cosmetic issue.

Answer

A sign the cord needs cleaning.

Question 38

What is the recommended action if you notice a burning smell coming from an electrical outlet?

Accepted Answer

Immediately disconnect the power source to the outlet.

Answer

Spray the outlet with water to cool it down.

Answer

Ignore it, it's probably nothing serious.

Question 39

What is the main purpose of a Ground Fault Circuit Interrupter (GFCI)?

Accepted Answer

To detect and interrupt electrical current flow in case of a ground fault.

Answer

To prevent electrical fires.

Answer

To regulate voltage in a circuit.

Question 40

What is the primary function of a circuit breaker?

Accepted Answer

To interrupt the flow of electricity when an overload condition occurs.

Answer

To prevent electrical shocks.

Answer

To control the voltage in a circuit.

Question 41

You discover an electrical wire that is sparking. What is the most appropriate initial action to take?

Accepted Answer

Isolate the area, secure it, and seek professional electrical assistance.

Answer

Attempt to remove the wire yourself.

Answer

Ignore it and hope it goes away.

Answer

Pour water on the wire to stop the sparks.

Question 42

Which of these is a common factor contributing to electrical fires?

Accepted Answer

Overloaded electrical circuits.

Answer

Regularly inspecting electrical cords.

Answer

Using GFCIs in wet locations.

Answer

Properly grounded appliances.

Question 43

A person is receiving an electric shock from a live wire. What action should you avoid taking?

Accepted Answer

Touching the person directly to pull them away from the wire.

Answer

Using a non-conductive material to move the wire away from the person.

Answer

Calling for emergency medical assistance.

Question 44

If you are working on a live electrical circuit and receive an electric shock, what is the most important thing to do immediately?

Accepted Answer

Break contact with the circuit using a non-conductive material, such as a dry wooden stick or rubber gloves.

Answer

Immediately splash water on the person to stop the shock.

Answer

Try to remove the wire from the source of power.

Answer

Call emergency services and wait for help to arrive.

Question 45

Which of the following is a safety measure to help prevent electrical shocks while working on electrical equipment?

Accepted Answer

Using insulated tools and wearing rubber gloves.

Answer

Working on electrical equipment only in well-lit areas.

Answer

Keeping all tools organized and in their designated places.

Answer

Working with electrical equipment in a dry environment.

Question 46

A person is in contact with a live electrical wire and receiving an electric shock. What should you NEVER do?

Accepted Answer

Touch the person directly to pull them away from the wire.

Answer

Turn off the power supply to the circuit if possible.

Answer

Call emergency services immediately.

Answer

Use a non-conductive object to move the wire away from the person.

Question 47

What is the primary reason for using ground fault circuit interrupters (GFCIs) in areas like bathrooms and kitchens?

Accepted Answer

To quickly cut off the electrical current in case of a ground fault, preventing electric shock.

Answer

To control the amount of electricity used by appliances.

Answer

To prevent electrical fires.

Answer

To increase the efficiency of electrical circuits.

Question 48

What is the most important safety precaution to take when working with electrical equipment?

Accepted Answer

Always disconnect the power supply before working on the equipment.

Answer

Work in a well-lit area.

Answer

Wear appropriate protective gear, such as rubber gloves and safety glasses.

Answer

Use insulated tools to prevent electrical shocks.

Question 49

Which of the following is NOT a common cause of electrical fires?

Accepted Answer

Overwatering

Answer

Faulty wiring

Answer

Damaged insulation

Answer

Overloading

Question 50

What is the first step to take when someone is experiencing an electrical shock?

Accepted Answer

Break the electrical circuit

Answer

Move the person away from the source

Answer

Call for medical help

Answer

Apply CPR

Question 51

Which type of fire extinguisher is NOT suitable for electrical fires?

Accepted Answer

Water

Answer

Foam

Answer

Dry chemical

Answer

Carbon dioxide

Question 52

What is the recommended distance to maintain from downed power lines?

Accepted Answer

At least 30 feet

Answer

5 feet

Answer

10 feet

Answer

As close as possible

Question 53

What is the purpose of a ground fault circuit interrupter (GFCI)?

Accepted Answer

To prevent electrical shocks

Answer

To isolate faulty circuits

Answer

To extinguish fires

Answer

To enhance electrical efficiency

Question 54

Which of the following is a safe way to remove a person from an electrical source?

Accepted Answer

Use a non-conductive object

Answer

Kick them away

Answer

Grab them with bare hands

Answer

Pull them by their clothing

Question 55

What should you do if you see an electrical outlet that is sparking?

Accepted Answer

Unplug all devices and call an electrician

Answer

Ignore it

Answer

Try to fix it yourself

Answer

Continue using the outlet

Question 56

What is the importance of regular electrical safety inspections?

Accepted Answer

To identify and mitigate potential hazards

Answer

To waste time

Answer

To satisfy insurance requirements

Answer

To improve the appearance of the workplace