Residential Wiring Exam Questions with Correct
Verified Solutions
The open circuit voltage between the two terminals of a single pole switch on a lighting
circuit when the switch is in the off position is...
120 volts
An arc flash can produce temperatures of ... Fahrenheit
35,000
Listing or labeling of electrical equipment is done by a ...
Recognized testing laboratory
The purpose of electrical symbols on plans is...
To graphically represent electrical products and systems
The NATIONAL ELECTRICAL CODE is a minimum ... standard.
Safety
The meaning of approved is...
Acceptable to the authority having jurisdiction
As defined in ARTICLE 100, a dwelling unit has the following features...
Permanent provisions for living, sleeping, cooking, and sanitation
All measurements in the NATIONAL ELECTRICAL CODE are shown in which system of
units?
,Both inch-pound and metric values
In the international system of units, the prefix KILO- means...
Thousand
In the international system of units the prefix MILLI- means...
One thousandth
NATIONALLY RECOGNIZED TESTING LABORATORIES (NRTL)... electrical
products to provide a basis for approval by inspectors in the field
Test and list
Devices are equipment whose primary function is to carry current, not ...
Utilize electric energy
All of the following items of electrical equipment are devices, except for a ...
Lamp
The NEC requires that a ... be installed at each conductor splice connection point
Box or conduit body
In order that the connections inside an outlet box remain accessible, the NEC requires that
a surface extension from an outlet box cover be made using ...
Flexible conduit
Electrical wall boxes should not be mounted back-to-back in walls because ...
,Sound may be transmitted from room to room, it reduces the fire resistance of the wall, and the
practice violates building codes
According to ... , unused knockouts and other openings in electrical boxes and cabinets are
required to be closed
NEC 110.12(A) and NEC 408.7
Device faceplates must be mounted so as to ...
Cover the opening in the wall and Seat against the wall surface
A receptacle outlet is ...
An outlet where one or more receptacles are installed
Where the noncombustible surface material is used on walls or ceilings, outlet boxes must
be mounted so that they will be set back no more than ... from the face of the surface
material
1/4 in. (6mm)
In construction of one- and two-family dwellings, the electrical circuits are usually designed
by the ...
Electrician
All of the following are included when calculating the usable area of a dwelling to compute
the required lighting load, except for ...
Crawl space
A 20-ampere requires ... AWG conductors, ignoring the effects of voltage drop
, 12 copper
How is the track lighting load in residence calculated?
It is considered to be part of the general lighting load of 3 volt-amperes per square foot
The 20-ampere appliance circuits required NEC are permitted to serve no other loads,
except for ...
Clock outlets and receptacles that are installed to plug in the cords of gas-fired ranges, ovens, or
counter-mounted cooking units
Where fixed glass panels (i.e., windows or non-sliding parts of a door) do not permit
installation of wall-mounted receptacles, ... are typically used to satisfy the receptacles
spacing requirements of the NEC
Floor-mounted receptacles
NEC Article 210 provides ... guidelines for locating receptacle outlets in residence
Mandatory
The "12 foot rule" for spacing receptacles applies to all the following areas of a house,
except for ...
Attics
Wall receptacles in a habitable room must be placed so they are no further than ... feet
from any point along the wall
6
Verified Solutions
The open circuit voltage between the two terminals of a single pole switch on a lighting
circuit when the switch is in the off position is...
120 volts
An arc flash can produce temperatures of ... Fahrenheit
35,000
Listing or labeling of electrical equipment is done by a ...
Recognized testing laboratory
The purpose of electrical symbols on plans is...
To graphically represent electrical products and systems
The NATIONAL ELECTRICAL CODE is a minimum ... standard.
Safety
The meaning of approved is...
Acceptable to the authority having jurisdiction
As defined in ARTICLE 100, a dwelling unit has the following features...
Permanent provisions for living, sleeping, cooking, and sanitation
All measurements in the NATIONAL ELECTRICAL CODE are shown in which system of
units?
,Both inch-pound and metric values
In the international system of units, the prefix KILO- means...
Thousand
In the international system of units the prefix MILLI- means...
One thousandth
NATIONALLY RECOGNIZED TESTING LABORATORIES (NRTL)... electrical
products to provide a basis for approval by inspectors in the field
Test and list
Devices are equipment whose primary function is to carry current, not ...
Utilize electric energy
All of the following items of electrical equipment are devices, except for a ...
Lamp
The NEC requires that a ... be installed at each conductor splice connection point
Box or conduit body
In order that the connections inside an outlet box remain accessible, the NEC requires that
a surface extension from an outlet box cover be made using ...
Flexible conduit
Electrical wall boxes should not be mounted back-to-back in walls because ...
,Sound may be transmitted from room to room, it reduces the fire resistance of the wall, and the
practice violates building codes
According to ... , unused knockouts and other openings in electrical boxes and cabinets are
required to be closed
NEC 110.12(A) and NEC 408.7
Device faceplates must be mounted so as to ...
Cover the opening in the wall and Seat against the wall surface
A receptacle outlet is ...
An outlet where one or more receptacles are installed
Where the noncombustible surface material is used on walls or ceilings, outlet boxes must
be mounted so that they will be set back no more than ... from the face of the surface
material
1/4 in. (6mm)
In construction of one- and two-family dwellings, the electrical circuits are usually designed
by the ...
Electrician
All of the following are included when calculating the usable area of a dwelling to compute
the required lighting load, except for ...
Crawl space
A 20-ampere requires ... AWG conductors, ignoring the effects of voltage drop
, 12 copper
How is the track lighting load in residence calculated?
It is considered to be part of the general lighting load of 3 volt-amperes per square foot
The 20-ampere appliance circuits required NEC are permitted to serve no other loads,
except for ...
Clock outlets and receptacles that are installed to plug in the cords of gas-fired ranges, ovens, or
counter-mounted cooking units
Where fixed glass panels (i.e., windows or non-sliding parts of a door) do not permit
installation of wall-mounted receptacles, ... are typically used to satisfy the receptacles
spacing requirements of the NEC
Floor-mounted receptacles
NEC Article 210 provides ... guidelines for locating receptacle outlets in residence
Mandatory
The "12 foot rule" for spacing receptacles applies to all the following areas of a house,
except for ...
Attics
Wall receptacles in a habitable room must be placed so they are no further than ... feet
from any point along the wall
6
