WALMART MAINTENANCE Electrical Systems 2

Question 1

What is the National Electrical Code (NEC)?

Accepted Answer

The US standard for safe electrical installation and maintenance practices

Answer

A building design standard

Answer

A code for emergency communication

Answer

A data encryption standard

Question 2

LED lighting is replacing fluorescent in many retail stores primarily because:

Accepted Answer

LEDs use less energy, last longer, and require less maintenance

Answer

LEDs are brighter

Answer

LEDs are cheaper to purchase

Answer

Fluorescent lights are illegal

Question 3

What should you do if you smell burning insulation near an electrical panel?

Accepted Answer

Evacuate the area, de-energize the panel from a safe distance if possible, and call for qualified help

Answer

Open the panel to investigate

Answer

Spray water on the panel

Answer

Continue working and monitor the smell

Question 4

What is an arc flash hazard?

Accepted Answer

An explosive release of energy caused by an electrical arc between conductors

Answer

A camera flash in the electrical room

Answer

A type of lightning

Answer

A flickering light

Question 5

What tool is used to verify that a circuit is de-energized before working on it?

Accepted Answer

A voltage tester or multimeter

Answer

A flashlight

Answer

A screwdriver

Answer

A circuit breaker finder

Question 6

What is the purpose of emergency lighting in a retail store?

Accepted Answer

To illuminate exit paths for safe evacuation during power failures

Answer

To highlight sale items during power outages

Answer

To provide security lighting

Answer

To keep freezers visible during outages