1
Residential Wiring Final Questions with Answers (100%
Correct Answers)
Many electricians wire the lights and receptacles in a room on different circuits
because this
Ans: offers the advantage that all power in a room will not go out if the overcurrent
protective device trips
Ceiling fan speed can be controlled by
Ans: pull chain on the fan; speed control mounted in a wall box; remote control similar
to TV/VCR type
The NEC allows what maximum number of receptacle outlets to be connected on a
120-volt residential lighting or small-appliance branch circuit?
Ans: unlimited
The maximum volt-ampere loading permitted on a 20-ampere branch circuit with a
continuous load is
Ans: 1920 VA
Which of the following switch types is rarely used in residential wiring?
Ans: double-pole
When someone decides to use a bedroom as a home office instead,
© 2025 All rights reserved
,2
Ans: a lot of electronic equipment will have to be plugged in
When installing a ceiling paddle fan, the outlet box must be
Ans: listed and marked as acceptable for fan support
Receptacles installed on 15- and 20-ampere branch circuits must be of the ______
type.
Ans: grounding
The selection of outlet boxes and switch boxes is made by the electrician. These
decisions are based on Code requirements, space allowances, good wiring practices,
and
Ans: common sense
Ceiling fan boxes designed to support more than _____ pounds must have the
maximum weight they are designed to support included in the marking.
Ans: 35
In a home office, the current draw is
Ans: low
A raised plaster cover (often called a plaster ring or mud ring) is permitted to
increase the maximum number of conductors permitted in an outlet box when it is
Ans: marked with its cubic-inch volume
A light above a workbench is an example of
Ans: task lighting
© 2025 All rights reserved
, 3
A light dimmer ______ be used as a speed control for a ceiling fan or other motor.
Ans: should not
Receptacle outlets must be installed in any wall space ______ or more in width.
Ans: 24in (600mm)
In a room that may be used as a home office, you could consider
Ans: using 12 AWG for the home run or even the entire branch circuit(s); wiring in
quadplex receptacles instead of duplex receptacles; using only plug-in strips that are UL
listed
During the winter, it is suggested that a paddle fan should
Ans: draw up air
Sliding glass panels ______ considered to be wall space, the same as any other
interior or exterior door.
Ans: are not
Which of the following is required in order to dim fluorescent fixtures?
Ans: fluorescent dimmer; dimming ballasts
Ceiling fans must be specially supported for all of the following reasons, except for
Ans: safe grounding
Residential wiring plans generally show lighting and receptacles outlet locations
but not circuits. The electrician should design the installation with which of the
following in mind?
© 2025 All rights reserved
Residential Wiring Final Questions with Answers (100%
Correct Answers)
Many electricians wire the lights and receptacles in a room on different circuits
because this
Ans: offers the advantage that all power in a room will not go out if the overcurrent
protective device trips
Ceiling fan speed can be controlled by
Ans: pull chain on the fan; speed control mounted in a wall box; remote control similar
to TV/VCR type
The NEC allows what maximum number of receptacle outlets to be connected on a
120-volt residential lighting or small-appliance branch circuit?
Ans: unlimited
The maximum volt-ampere loading permitted on a 20-ampere branch circuit with a
continuous load is
Ans: 1920 VA
Which of the following switch types is rarely used in residential wiring?
Ans: double-pole
When someone decides to use a bedroom as a home office instead,
© 2025 All rights reserved
,2
Ans: a lot of electronic equipment will have to be plugged in
When installing a ceiling paddle fan, the outlet box must be
Ans: listed and marked as acceptable for fan support
Receptacles installed on 15- and 20-ampere branch circuits must be of the ______
type.
Ans: grounding
The selection of outlet boxes and switch boxes is made by the electrician. These
decisions are based on Code requirements, space allowances, good wiring practices,
and
Ans: common sense
Ceiling fan boxes designed to support more than _____ pounds must have the
maximum weight they are designed to support included in the marking.
Ans: 35
In a home office, the current draw is
Ans: low
A raised plaster cover (often called a plaster ring or mud ring) is permitted to
increase the maximum number of conductors permitted in an outlet box when it is
Ans: marked with its cubic-inch volume
A light above a workbench is an example of
Ans: task lighting
© 2025 All rights reserved
, 3
A light dimmer ______ be used as a speed control for a ceiling fan or other motor.
Ans: should not
Receptacle outlets must be installed in any wall space ______ or more in width.
Ans: 24in (600mm)
In a room that may be used as a home office, you could consider
Ans: using 12 AWG for the home run or even the entire branch circuit(s); wiring in
quadplex receptacles instead of duplex receptacles; using only plug-in strips that are UL
listed
During the winter, it is suggested that a paddle fan should
Ans: draw up air
Sliding glass panels ______ considered to be wall space, the same as any other
interior or exterior door.
Ans: are not
Which of the following is required in order to dim fluorescent fixtures?
Ans: fluorescent dimmer; dimming ballasts
Ceiling fans must be specially supported for all of the following reasons, except for
Ans: safe grounding
Residential wiring plans generally show lighting and receptacles outlet locations
but not circuits. The electrician should design the installation with which of the
following in mind?
© 2025 All rights reserved
