Question 1

The ____ assumes that not all lights will be on at the same time, so the lighting load can be reduced.&#10;A) electrical plan&#10;B) distribution panel&#10;C) circuit breaker&#10;D) demand factor

Accepted Answer

The demand factor is a percentage reduction applied to the maximum possible electrical demand to account for the fact that not all loads are typically used simultaneously. Therefore, the demand factor assumes that not all lights will be on at the same time, allowing for a reduced lighting load. The other choices (electrical plan, distribution panel, circuit breaker) do not directly involve the assumption of reduced load due to non-simultaneous usage.

Question 2

The intensity of a light is measured in units of footcandles.

Accepted Answer

Footcandles is a unit of illuminance or light intensity, which measures the amount of light falling on a surface. Therefore, the statement is true.

Question 3

Carbon monoxide alarms should be placed _____.&#10;A) in the kitchen&#10;B) in the garage&#10;C) outside of each sleeping area&#10;D) along each staircase

Accepted Answer

Carbon monoxide alarms should be placed outside of each sleeping area to ensure that individuals are alerted if dangerous levels of carbon monoxide are present while they are sleeping. Placing them in the kitchen or garage may not be effective in detecting carbon monoxide levels in bedrooms or other sleeping areas. While placing them along each staircase could be helpful, it is not as effective as placing them outside of each sleeping area.

Question 4

The NEC defines a(n) ____ as the location in the circuit where electrical devices are connected.&#10;A) outlet&#10;B) vent stack&#10;C) distribution panel&#10;D) conduit

Accepted Answer

An outlet is the location in the circuit where electrical devices are connected, such as a receptacle or light fixture. A vent stack is a vertical pipe used for venting sewer gases. A distribution panel is also known as an electrical panel and serves as the main point for distributing power throughout a building. Conduit is a pipe or tube used to protect and route electrical wiring.

Question 5

A _____ is an electrical circuit that contains two or more paths for the electricity or signal to flow from a common source.&#10;A) ground fault circuit interrupter&#10;B) receptacle&#10;C) single-pole circuit&#10;D) parallel circuit

Accepted Answer

A parallel circuit has multiple paths for the electricity or signal to flow from a common source. This is in contrast to a series circuit, where the electricity or signal has only one path to flow through all components. A ground fault circuit interrupter (GFCI) is a safety device that detects and cuts off power to a circuit if there is a ground fault. A receptacle is an outlet where you can connect a device or appliance to an electrical circuit. A single-pole circuit is a basic type of electrical circuit that has one switch controlling one load (such as a light or an outlet).

Question 6

Which of the following should be placed first when creating a separate electrical plan?&#10;A) switches&#10;B) lighting fixtures&#10;C) outlets&#10;D) smoke alarms

Accepted Answer

Lighting fixtures should be placed first when creating a separate electrical plan because they are primary elements that determine the layout and location of other electrical components such as switches, outlets, and smoke alarms.

Question 7

Direct lighting reflects light off a ceiling or wall surface and then into a room.

Accepted Answer

Direct lighting refers to lighting fixtures that shine light directly downwards without reflecting off a surface. Indirect lighting is the method of reflecting light off a surface, such as a ceiling or wall, to create a softer, more diffused light in a room.

Question 8

A(n) ____ is a unit of measurement of electrical force or potential.&#10;A) ohm&#10;B) watt&#10;C) amp&#10;D) volt

Accepted Answer

A volt is the unit of measurement for electrical force or potential. Ohms are the unit of measurement for electrical resistance, watts are the unit of measurement for electrical power, and amps are the unit of measurement for electrical current.

Question 9

The amount of power to be used per fixture is determined by multiplying the current by volts.

Accepted Answer

This formula is known as Ohm's Law, where Power (in watts) = Current (in amps) x Voltage (in volts).

Question 10

A 240-volt receptacle is referred to as a convenience outlet.

Accepted Answer

A 240-volt receptacle is not referred to as a convenience outlet, but as a heavy-duty outlet for larger appliances such as dryers and ovens. A convenience outlet refers to a standard 120-volt outlet used for smaller appliances and electronics.

Question 11

All systems must be grounded at the service entrance, and some municipalities require lightning protection and brownout equipment.

Accepted Answer

The answer of All systems must be grounded at the...

Question 12

The NEC requires the minimum number of lighting circuits to be based on a lighting load of ____ watts per square foot of floor space.&#10;A) 2&#10;B) 3&#10;C) 4&#10;D) 5

Accepted Answer

The answer of The NEC requires the minimum number of...

Question 13

Electrical symbols should be written with _____.&#10;A) squares 3&#34; (75 mm) in diameter&#10;B) squares 6&#34; (150 mm) in diameter&#10;C) circles 3&#34; (75 mm) in diameter&#10;D) circles 6&#34; (150 mm) in diameter

Accepted Answer

The answer of Electrical symbols should be written with _____.&#10;A)...

Question 14

What type of switch allows the circuit to be regulated based on a specific amount of natural light?&#10;A) photoelectric&#10;B) single-pole&#10;C) dimmer&#10;D) motion-detection

Accepted Answer

The answer of What type of switch allows the circuit...

Question 15

A(n) ____ is a unit of power measurement based on the potential and the current.&#10;A) watt&#10;B) amp&#10;C) volt&#10;D) ohm

Accepted Answer

The answer of A(n) ____ is a unit of power...

Deck 13: Electrical Plans