Question 1

The phrase " load" is used to designate when the value is in compliance with the requirements of NEC Article 220.

Accepted Answer

A) calculated 
B) connected 
C) theoretical 
D) practical 
A) calculated 
B) connected 
C) theoretical 
D) practical A

Question 2

What are the requirements for the disconnecting means used with sign and outline lighting systems?

Accepted Answer

In accordance with NEC 600.6, each sign and outline lighting system is required to have a disconnecting means (switch or circuit breaker) that
• is externally operable.
• opens all ungrounded (hot) conductors.
• is within sight of the sign or is capable of being locked in the off position.
• does not rely on portable means of locking the disconnect off.
• Exception: Indoor signs that are cord and plug connected do not require another disconnect.The
cord and plug connection serves as the required disconnecting means.

Question 3

Article in the NEC covers the installation of signs and outline lighting.

Accepted Answer

A) 220.12 
B) 450 
C) 600 
D) 690 
A) 220.12 
B) 450 
C) 600 
D) 690 C

Question 4

According to NEC Table 220.12, the minimum load for basement storage space is volt-amperes per square foot (3 volt-amperes per square meter).

Accepted Answer

A) 0.25 
B) 3 
C) 5.25 
D) 11 
A) 0.25 
B) 3 
C) 5.25 
D) 11

Question 5

NEC Article applies to motors, including those that are a part of motor-operated appliances unless "specifically amended" by NEC Article 422.

Accepted Answer

A) 420 
B) 430 
C) 440 
D) 450 
A) 420 
B) 430 
C) 440 
D) 450

Question 6

What does the informational note state about hazards in the section of the NEC regarding its purpose?

Accepted Answer

Hazards often occur because of overloadi

Question 7

For show window lighting, allow voltamperes per linear foot (660 volt-amperes per linear meter), or use the connected load if that value is higher.

Accepted Answer

A) 110 
B) 200 
C) 330 
D) 440 
A) 110 
B) 200 
C) 330 
D) 440

Question 8

A single piece of equipment consisting of a multiple receptacle comprised of four or more receptacles shall be calculated at not less than volt-amperes per receptacle.

Accepted Answer

A) 45 
B) 90 
C) 110 
D) 220 
A) 45 
B) 90 
C) 110 
D) 220

Question 9

For what period of time do we expect lighting loads in commercial occupancies, and what can we do to prevent overheating?

Accepted Answer

Lighting loads in commercial occupancies

Question 10

High harmonic currents associated with loads cause havoc by overheating the neutral conductor.

Accepted Answer

A) linear 
B) nonlinear 
C) calculated 
D) balanced 
A) linear 
B) nonlinear 
C) calculated 
D) balanced

Question 11

A sign outlet is assigned a minimum allowance of volt-amperes for each branch circuit required.

Accepted Answer

A) 1200 
B) 2400 
C) 3600 
D) 4000 
A) 1200 
B) 2400 
C) 3600 
D) 4000

Question 12

According to NEC Table 220.12, armories and auditoriums should have a calculated unit load of at least volt-amperes per square meter.

Accepted Answer

A) 11 
B) 22 
C) 33 
D) 39 
A) 11 
B) 22 
C) 33 
D) 39

Question 13

The purpose of the National Electrical Code is the practical safeguarding of from hazards arising from the use of electricity.

Accepted Answer

A) construction workers 
B) homes 
C) electricians 
D) persons and property 
A) construction workers 
B) homes 
C) electricians 
D) persons and property

Question 14

At least one is required to be installed above each linear 12 ft (3.7 m) section of show window.

Accepted Answer

A) receptacle outlet 
B) lighting outlet 
C) switch 
D) panelboard 
A) receptacle outlet 
B) lighting outlet 
C) switch 
D) panelboard

Question 15

To plan any electrical wiring project, the first step is to determine the that the electrical system is to serve.

Accepted Answer

A) municipality 
B) feeders 
C) load 
D) higher-order function 
A) municipality 
B) feeders 
C) load 
D) higher-order function

Question 16

What is the allowance for lighting track in the drugstore?

Accepted Answer

If lighting track is installed, 150 volt

Question 17

The phrase " load" is used to designate the value of the load as it actually exists.

Accepted Answer

A) connected 
B) calculated 
C) theoretical 
D) practical 
A) connected 
B) calculated 
C) theoretical 
D) practical

Question 18

NEC Article applies to fixed electric space-heating equipment.

Accepted Answer

A) 420 
B) 424 
C) 430 
D) 440 
A) 420 
B) 424 
C) 430 
D) 440

Question 19

NEC Article addresses air-conditioning and refrigeration equipment that incorporates hermetic refrigeration motor-compressor(s).

Accepted Answer

A) 420 
B) 422 
C) 430 
D) 440 
A) 420 
B) 422 
C) 430 
D) 440

Question 20

Why is it important to correctly tabulate the connected load?

Accepted Answer

It is important that the connected load

Exam 3: Calculating the Electrical Load

The phrase " load" is used to designate when the value is in compliance with the requirements of NEC Article 220.

What are the requirements for the disconnecting means used with sign and outline lighting systems?

Article in the NEC covers the installation of signs and outline lighting.

According to NEC Table 220.12, the minimum load for basement storage space is volt-amperes per square foot (3 volt-amperes per square meter).

NEC Article applies to motors, including those that are a part of motor-operated appliances unless "specifically amended" by NEC Article 422.

What does the informational note state about hazards in the section of the NEC regarding its purpose?

For show window lighting, allow voltamperes per linear foot (660 volt-amperes per linear meter), or use the connected load if that value is higher.

A single piece of equipment consisting of a multiple receptacle comprised of four or more receptacles shall be calculated at not less than volt-amperes per receptacle.

For what period of time do we expect lighting loads in commercial occupancies, and what can we do to prevent overheating?

High harmonic currents associated with loads cause havoc by overheating the neutral conductor.

A sign outlet is assigned a minimum allowance of volt-amperes for each branch circuit required.

According to NEC Table 220.12, armories and auditoriums should have a calculated unit load of at least volt-amperes per square meter.

The purpose of the National Electrical Code is the practical safeguarding of from hazards arising from the use of electricity.

At least one is required to be installed above each linear 12 ft (3.7 m) section of show window.

To plan any electrical wiring project, the first step is to determine the that the electrical system is to serve.

What is the allowance for lighting track in the drugstore?

The phrase " load" is used to designate the value of the load as it actually exists.

NEC Article applies to fixed electric space-heating equipment.

NEC Article addresses air-conditioning and refrigeration equipment that incorporates hermetic refrigeration motor-compressor(s).

Why is it important to correctly tabulate the connected load?

Commercial Building Plans and Specifications

Reading Electrical Working Drawings- Entry Level

Branch Circuits

Switches and Receptacles

Wiring Methods

Motor and Appliance Circuits

Feeders

Special Systems

Working Drawings- Upper Level

Special Circuits Owners Circuits

Panelboard Selection and Installation

The Electric Service

Lamps and Ballasts for Lighting

Luminaires

Emergency, Legally Required Sstandby, and Optional Standby Power Systems

Overcurrent Protection: Fuses and Circuit Breakers

Short-Circuit Calculations and Coordination of Overcurrent Protective Devices

Equipment and Conductor Short-Circuit Protection

Low-Voltage Remote-Control

The Cooling System

Commercial Utility Interactive Photovoltaic Systems

Filters