FREE PECO Electrical Systems & Safety Protocols Questions and Answers

Question 1

What device is used to interrupt electrical flow in the event of an overload?

Accepted Answer

Circuit breaker

Answer

Transformer

Answer

Condenser

Answer

Insulator

Question 2

Which color typically indicates a ground wire in residential systems?

Accepted Answer

Green

Answer

Red

Answer

Black

Answer

White

Question 3

What is the function of a transformer?

Accepted Answer

Transfer energy between circuits

Answer

Store energy

Answer

Reduce circuit resistance

Answer

Control current direction

Question 4

Which PPE is essential when working on energized equipment?

Accepted Answer

Insulated gloves

Answer

Rubber boots

Answer

Safety goggles

Answer

Steel-toe shoes

Question 5

What is Lockout/Tagout (LOTO) used for?

Accepted Answer

Control hazardous energy during maintenance

Answer

Emergency response

Answer

Grounding systems

Answer

Labeling equipment

Question 6

What is the minimum safe distance when working near power lines?

Accepted Answer

10 feet

Answer

3 feet

Answer

5 feet

Answer

15 feet

Question 7

Which standard outlines electrical safety in the workplace?

Accepted Answer

NFPA 70E

Answer

OSHA 1910

Answer

NEC

Answer

ANSI Z87

Question 8

What tool is used to measure voltage?

Accepted Answer

Multimeter

Answer

Caliper

Answer

Barometer

Answer

Thermometer

Question 9

Why is grounding important in electrical systems?

Accepted Answer

Reduce fire and shock risk

Answer

Increase resistance

Answer

Stabilize voltage levels

Answer

Speed up circuits