RESIDENTIAL WIREMAN EXAM 2024 ACTUAL EXAM
COMPLETE 250 ACCURATE QUESTIONS WITH DETAILED
VERIFIED ANSWERS (100% CORRECT ANSWERS)
/ALREADY GRADED A+
All single-phase, 15 or 20-ampere branch-circuits supplying outlets or devices
installed in residential kitchens or similar rooms, shall be protected by a listed arc-
fault circuit interrupter of the _____ type. - ANSWER: Combination
In dwelling units, hallways of _____ feet or more in length are required to have at
least one (1), 15- or 20-ampere rated 125-volt receptacle outlet. - ANSWER: 10
Electrical outlet boxes installed in walls and ceilings are required to be __________. -
ANSWER: accessible
Raceways installed in solid rock shall be permitted to be buried at lesser depths than
generally required, when covered by at LEAST _____ inches of concrete, extending
down to the rock. - ANSWER: two
The MINIMUM number of 120-volt, 15-ampere, general lighting branch circuits
required for a dwelling that has 70 feet by 30 feet of habitable space is _____. -
ANSWER: 4
When the heating, air-conditioning, or refrigeration equipment is installed on the
roof of an apartment complex, a 125-volt, 15- or 20-ampere rated receptacle outlet
_____. - ANSWER: shall be located on the same level and within 25 feet of the
heating, air-conditioning, or refrigeration equipment
Where nonmetallic sheathed cable (NM) is run at angles with joists in unfinished
basements, the smallest three (3) conductor cable permitted to be installed directly
to the lower edges of the joists is size _____. - ANSWER: 8 AWG
All 125-volt, single-phase, 15- and 20-ampere rated receptacles installed in
residential garages shall be _____.
I. protected by a listed arc-fault interrupter
II. provided with ground-fault circuit-interrupter protection - ANSWER: II only
Where a 120-volt lighting branch-circuit is to supply only six (6) 100 watt, 120-volt,
incandescent luminaires, determine the approximate total current on this branch
circuit. - ANSWER: 5 Amperes
In a dwelling unit bedroom, any wall space that is at LEAST _____ feet or more in
width must be provided with a general use receptacle outlet. - ANSWER: two
, The MINIMUM internal depth of a box that is intended to enclose a flush mounted
device supplied by 14 AWG conductors shall be _____. - ANSWER: 15/16 inch
Receptacle outlets on a 20-ampere rated small appliance branch circuit serving
kitchen countertops in a dwelling unit are to be rated _____.
I. 15 amperes
II. 20 amperes - ANSWER: either I or II
Where a 40-gallon storage-type electric water heater has a nameplate rating of
4,500 watts @ 240 volts, what is the MAXIMUM standard size circuit breaker the
NEC® permits to protect the water heater? - ANSWER: 30 amperes
Given: You are to install a 20 ampere, 120 volt, GFCI-protected, buried, branch circuit
that supplies landscape lighting for a residence. If UF cable is used for this
installation, it is required to have a ground cover of at LEAST __________. - ANSWER:
12 inches
A receptacle outlet installed for a gas or electric clothes dryer in the laundry room of
a dwelling unit must be installed within at LEAST _____ feet of the intended location
of the dryer. - ANSWER: six
Receptacles in a kitchen of a residence that are to serve countertop and work
surfaces shall be installed so that no point along the wall line is more than _____
inches, measured horizontally, from a receptacle outlet in that space. - ANSWER: 24
Unless listed for the control of other loads, general use dimmer switches shall only
be used to control _____. - ANSWER: permanently installed incandescent luminaires
In general, service conductors installed as open conductors shall have a clearance of
NOT less than _____ feet from windows that are designed to be opened, doors,
porches or balconies. - ANSWER: three
A 150 kVA, single-phase transformer having a secondary voltage of 120/240 is to be
installed at a multi-family dwelling. The approximate current available at the
transformer secondary is _____ amperes. - ANSWER: 625
Which of the following conductors are required to have overload protection on a
residential electric service? - ANSWER: ungrounded conductors
Metallic surface type cabinets for electrical equipment located in damp or wet
locations shall be mounted so there is at LEAST _____ air space between the cabinet
and the wall or other supporting surface. - ANSWER: 1/4 inch
Disregarding exceptions, the power supply cord to a mobile home shall have a
MAXIMUM rating of _____ amperes. - ANSWER: 50
COMPLETE 250 ACCURATE QUESTIONS WITH DETAILED
VERIFIED ANSWERS (100% CORRECT ANSWERS)
/ALREADY GRADED A+
All single-phase, 15 or 20-ampere branch-circuits supplying outlets or devices
installed in residential kitchens or similar rooms, shall be protected by a listed arc-
fault circuit interrupter of the _____ type. - ANSWER: Combination
In dwelling units, hallways of _____ feet or more in length are required to have at
least one (1), 15- or 20-ampere rated 125-volt receptacle outlet. - ANSWER: 10
Electrical outlet boxes installed in walls and ceilings are required to be __________. -
ANSWER: accessible
Raceways installed in solid rock shall be permitted to be buried at lesser depths than
generally required, when covered by at LEAST _____ inches of concrete, extending
down to the rock. - ANSWER: two
The MINIMUM number of 120-volt, 15-ampere, general lighting branch circuits
required for a dwelling that has 70 feet by 30 feet of habitable space is _____. -
ANSWER: 4
When the heating, air-conditioning, or refrigeration equipment is installed on the
roof of an apartment complex, a 125-volt, 15- or 20-ampere rated receptacle outlet
_____. - ANSWER: shall be located on the same level and within 25 feet of the
heating, air-conditioning, or refrigeration equipment
Where nonmetallic sheathed cable (NM) is run at angles with joists in unfinished
basements, the smallest three (3) conductor cable permitted to be installed directly
to the lower edges of the joists is size _____. - ANSWER: 8 AWG
All 125-volt, single-phase, 15- and 20-ampere rated receptacles installed in
residential garages shall be _____.
I. protected by a listed arc-fault interrupter
II. provided with ground-fault circuit-interrupter protection - ANSWER: II only
Where a 120-volt lighting branch-circuit is to supply only six (6) 100 watt, 120-volt,
incandescent luminaires, determine the approximate total current on this branch
circuit. - ANSWER: 5 Amperes
In a dwelling unit bedroom, any wall space that is at LEAST _____ feet or more in
width must be provided with a general use receptacle outlet. - ANSWER: two
, The MINIMUM internal depth of a box that is intended to enclose a flush mounted
device supplied by 14 AWG conductors shall be _____. - ANSWER: 15/16 inch
Receptacle outlets on a 20-ampere rated small appliance branch circuit serving
kitchen countertops in a dwelling unit are to be rated _____.
I. 15 amperes
II. 20 amperes - ANSWER: either I or II
Where a 40-gallon storage-type electric water heater has a nameplate rating of
4,500 watts @ 240 volts, what is the MAXIMUM standard size circuit breaker the
NEC® permits to protect the water heater? - ANSWER: 30 amperes
Given: You are to install a 20 ampere, 120 volt, GFCI-protected, buried, branch circuit
that supplies landscape lighting for a residence. If UF cable is used for this
installation, it is required to have a ground cover of at LEAST __________. - ANSWER:
12 inches
A receptacle outlet installed for a gas or electric clothes dryer in the laundry room of
a dwelling unit must be installed within at LEAST _____ feet of the intended location
of the dryer. - ANSWER: six
Receptacles in a kitchen of a residence that are to serve countertop and work
surfaces shall be installed so that no point along the wall line is more than _____
inches, measured horizontally, from a receptacle outlet in that space. - ANSWER: 24
Unless listed for the control of other loads, general use dimmer switches shall only
be used to control _____. - ANSWER: permanently installed incandescent luminaires
In general, service conductors installed as open conductors shall have a clearance of
NOT less than _____ feet from windows that are designed to be opened, doors,
porches or balconies. - ANSWER: three
A 150 kVA, single-phase transformer having a secondary voltage of 120/240 is to be
installed at a multi-family dwelling. The approximate current available at the
transformer secondary is _____ amperes. - ANSWER: 625
Which of the following conductors are required to have overload protection on a
residential electric service? - ANSWER: ungrounded conductors
Metallic surface type cabinets for electrical equipment located in damp or wet
locations shall be mounted so there is at LEAST _____ air space between the cabinet
and the wall or other supporting surface. - ANSWER: 1/4 inch
Disregarding exceptions, the power supply cord to a mobile home shall have a
MAXIMUM rating of _____ amperes. - ANSWER: 50
