Electrical wiring final exam solved
correctly to score a+ 2025
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 CORRECT ANSWERS 120V
An arc flash can produce temperatures of ____°F. CORRECT ANSWERS 35,000
For safety, it is very important that electrical equipment be "listed" by the CORRECT
ANSWERS A National Recognized Testing Laboratory (NRTL)
The National Electrical Code is revised every ____ years so as to be as up to date as
possible. CORRECT ANSWERS 3
The term approved means to be CORRECT ANSWERS acceptable to the authority
having jurisdiction
As defined in Article 100, a dwelling unit has the following feature(s) CORRECT
ANSWERS permanent provisions for living, sleeping, cooking, and sanitation
All measurements in the National Electrical Code are shown in which system(s) of
units? CORRECT ANSWERS both inch-pound and metric values
In the international system of units, the prefix kilo- means CORRECT ANSWERS
Thousand
In the international system of units, the prefix milli- means CORRECT ANSWERS one
thousandth
Nationally Recognized Testing Laboratories (NRTL) ____ electrical products to provide
a basis for approval by inspectors in the field. CORRECT ANSWERS test and list
Always ____________________ the power before working on an electrical circuit.
CORRECT ANSWERS shut off and lock out/tag out
Every time an electrician makes a decision concerning the electrical wiring, the decision
should be checked by reference to the CORRECT ANSWERS The NEC
The authority having jurisdiction over electrical construction is generally the CORRECT
ANSWERS The electrical inspector
The use of the word shall indicates a(n) ____________________ rule. CORRECT
ANSWERS mandatory
, Nationally Recognized Testing Laboratories (NRTL) test and evaluate products for
CORRECT ANSWERS Safety and approval
In construction of one- and two-family dwellings, the electrical circuits are usually
designed by the CORRECT ANSWERS Electrician
Most public service commission's require that the voltage for residential services be
held to ± ____ percent of the nominal voltage as measured at the service point.
CORRECT ANSWERS 5%
Which of the following is NOT included when calculating the usable area of a dwelling to
compute the required lighting load? CORRECT ANSWERS A crawl space (options:
living room, crawl space, an unfinished basement, and powder rooms.
How is track lighting load in residences calculated? CORRECT ANSWERS It is
considered to be part of the general lighting load of 3 volt-amperes per square foot.
NEC 240.4(D) is referred to as the "Small Conductor Rule" and tells us that the
maximum overcurrent protection is 15 amperes for ____ copper conductors. CORRECT
ANSWERS 14AWG
The general lighting load for a dwelling is based on the CORRECT ANSWERS Square
footage of the dwelling
Wall receptacles must be placed so that no point measured horizontally along the floor
line in any wall space is more than ____ feet from a receptacle outlet. CORRECT
ANSWERS 6 feet
What determines the rating of a branch circuit? CORRECT ANSWERS Rating of the
overcurrent device
The National Electrical Code requires outdoor receptacles to be CORRECT ANSWERS
GFCI protected
The minimum lighting load requirement for dwellings is ____ volt-amperes per square
foot. CORRECT ANSWERS 3
Nominal voltage means "in name only, not a fact". We would say "120 volts" even if we
read an actual voltage of 110, 115, 117, or even 123 volts. CORRECT ANSWERS True
Calculate the minimum number of 15-ampere, 120v lighting branch circuits required in a
residence of 1,850 square feet.
How many lighting circuits would this house need? CORRECT ANSWERS 4
Electrical outlets are anywhere a person could tap into the power. These could be
lighting outlets and/or receptacle outlets. CORRECT ANSWERS True
correctly to score a+ 2025
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 CORRECT ANSWERS 120V
An arc flash can produce temperatures of ____°F. CORRECT ANSWERS 35,000
For safety, it is very important that electrical equipment be "listed" by the CORRECT
ANSWERS A National Recognized Testing Laboratory (NRTL)
The National Electrical Code is revised every ____ years so as to be as up to date as
possible. CORRECT ANSWERS 3
The term approved means to be CORRECT ANSWERS acceptable to the authority
having jurisdiction
As defined in Article 100, a dwelling unit has the following feature(s) CORRECT
ANSWERS permanent provisions for living, sleeping, cooking, and sanitation
All measurements in the National Electrical Code are shown in which system(s) of
units? CORRECT ANSWERS both inch-pound and metric values
In the international system of units, the prefix kilo- means CORRECT ANSWERS
Thousand
In the international system of units, the prefix milli- means CORRECT ANSWERS one
thousandth
Nationally Recognized Testing Laboratories (NRTL) ____ electrical products to provide
a basis for approval by inspectors in the field. CORRECT ANSWERS test and list
Always ____________________ the power before working on an electrical circuit.
CORRECT ANSWERS shut off and lock out/tag out
Every time an electrician makes a decision concerning the electrical wiring, the decision
should be checked by reference to the CORRECT ANSWERS The NEC
The authority having jurisdiction over electrical construction is generally the CORRECT
ANSWERS The electrical inspector
The use of the word shall indicates a(n) ____________________ rule. CORRECT
ANSWERS mandatory
, Nationally Recognized Testing Laboratories (NRTL) test and evaluate products for
CORRECT ANSWERS Safety and approval
In construction of one- and two-family dwellings, the electrical circuits are usually
designed by the CORRECT ANSWERS Electrician
Most public service commission's require that the voltage for residential services be
held to ± ____ percent of the nominal voltage as measured at the service point.
CORRECT ANSWERS 5%
Which of the following is NOT included when calculating the usable area of a dwelling to
compute the required lighting load? CORRECT ANSWERS A crawl space (options:
living room, crawl space, an unfinished basement, and powder rooms.
How is track lighting load in residences calculated? CORRECT ANSWERS It is
considered to be part of the general lighting load of 3 volt-amperes per square foot.
NEC 240.4(D) is referred to as the "Small Conductor Rule" and tells us that the
maximum overcurrent protection is 15 amperes for ____ copper conductors. CORRECT
ANSWERS 14AWG
The general lighting load for a dwelling is based on the CORRECT ANSWERS Square
footage of the dwelling
Wall receptacles must be placed so that no point measured horizontally along the floor
line in any wall space is more than ____ feet from a receptacle outlet. CORRECT
ANSWERS 6 feet
What determines the rating of a branch circuit? CORRECT ANSWERS Rating of the
overcurrent device
The National Electrical Code requires outdoor receptacles to be CORRECT ANSWERS
GFCI protected
The minimum lighting load requirement for dwellings is ____ volt-amperes per square
foot. CORRECT ANSWERS 3
Nominal voltage means "in name only, not a fact". We would say "120 volts" even if we
read an actual voltage of 110, 115, 117, or even 123 volts. CORRECT ANSWERS True
Calculate the minimum number of 15-ampere, 120v lighting branch circuits required in a
residence of 1,850 square feet.
How many lighting circuits would this house need? CORRECT ANSWERS 4
Electrical outlets are anywhere a person could tap into the power. These could be
lighting outlets and/or receptacle outlets. CORRECT ANSWERS True
