Electrical wiring final Exam
Questions and Already Graded
A+
The National Electrical Code is revised every ____ years so as to be as up to date as possible.
answer - 3
The term approved means to be answer - acceptable to the authority having jurisdiction
As defined in Article 100, a dwelling unit has the following feature(s) answer - permanent
provisions for living, sleeping, cooking, and sanitation
All measurements in the National Electrical Code are shown in which system(s) of units?
answer - both inch-pound and metric values
In the international system of units, the prefix kilo- means answer - Thousand
In the international system of units, the prefix milli- means answer - one thousandth
Nationally Recognized Testing Laboratories (NRTL) ____ electrical products to provide a basis for
approval by inspectors in the field. answer - test and list
Always ____________________ the power before working on an electrical circuit. answer -
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 answer - The NEC
The authority having jurisdiction over electrical construction is generally the answer - The
electrical inspector
The use of the word shall indicates a(n) ____________________ rule. answer - mandatory
Nationally Recognized Testing Laboratories (NRTL) test and evaluate products for answer -
Safety and approval
In construction of one- and two-family dwellings, the electrical circuits are usually designed by
the answer - 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. answer - 5%
Which of the following is NOT included when calculating the usable area of a dwelling to
compute the required lighting load? answer - A crawl space (options: living room, crawl space,
an unfinished basement, and powder rooms.
How is track lighting load in residences calculated? answer - 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. answer - 14AWG
The general lighting load for a dwelling is based on the answer - Square footage of the dwelling
Questions and Already Graded
A+
The National Electrical Code is revised every ____ years so as to be as up to date as possible.
answer - 3
The term approved means to be answer - acceptable to the authority having jurisdiction
As defined in Article 100, a dwelling unit has the following feature(s) answer - permanent
provisions for living, sleeping, cooking, and sanitation
All measurements in the National Electrical Code are shown in which system(s) of units?
answer - both inch-pound and metric values
In the international system of units, the prefix kilo- means answer - Thousand
In the international system of units, the prefix milli- means answer - one thousandth
Nationally Recognized Testing Laboratories (NRTL) ____ electrical products to provide a basis for
approval by inspectors in the field. answer - test and list
Always ____________________ the power before working on an electrical circuit. answer -
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 answer - The NEC
The authority having jurisdiction over electrical construction is generally the answer - The
electrical inspector
The use of the word shall indicates a(n) ____________________ rule. answer - mandatory
Nationally Recognized Testing Laboratories (NRTL) test and evaluate products for answer -
Safety and approval
In construction of one- and two-family dwellings, the electrical circuits are usually designed by
the answer - 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. answer - 5%
Which of the following is NOT included when calculating the usable area of a dwelling to
compute the required lighting load? answer - A crawl space (options: living room, crawl space,
an unfinished basement, and powder rooms.
How is track lighting load in residences calculated? answer - 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. answer - 14AWG
The general lighting load for a dwelling is based on the answer - Square footage of the dwelling
