FREE TN-LLE General NEC Requirements Questions and Answers

Question 1

What is the primary purpose of the National Electrical Code (NEC)?

Accepted Answer

The practical safeguarding of persons and property from hazards arising from the use of electricity

Answer

To serve as a design specification for electrical installations

Answer

To provide a guide for training qualified electricians

Answer

To ensure the efficient use of electricity

Question 2

In the NEC, what does the term "Readily Accessible" mean?

Accepted Answer

Capable of being reached quickly for operation, renewal, or inspections without requiring tools to open doors or climbing over obstacles.

Answer

Capable of being reached for operation, but may require a portable ladder.

Answer

Admitting close approach; not guarded by locked doors or elevation.

Answer

Visible and not more than 50 feet distant from the equipment.

Question 3

A 240/120-volt panelboard is installed in a basement opposite a concrete wall. What is the minimum required depth of working space in front of this panelboard?

Accepted Answer

3 feet

Answer

30 inches

Answer

4 feet

Answer

3.5 feet

Question 4

Which word used in the National Electrical Code indicates a mandatory rule?

Accepted Answer

Shall

Answer

Should

Answer

May

Answer

Could

Question 5

An electrical enclosure is to be installed outdoors, exposed to rain and sleet. Which NEMA enclosure type is the minimum requirement for this location?

Accepted Answer

Type 3R

Answer

Type 1

Answer

Type 2

Answer

Type 12

Question 6

According to NEC 110.16(A), service equipment in other than dwelling units that is likely to require examination while energized must be field marked to warn of what specific hazard?

Accepted Answer

Potential Arc-Flash Hazards

Answer

High Voltage

Answer

Electric Shock Hazard

Answer

Lockout/Tagout Required