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Master Electrical Closed Book Exam, State Licensing
Board / NEC ||Verified Exam!!!||(NFPA 70) Program,
2026/2027 Questions with Verified A+
Solutions||Newest Exam!!!
An insulated conductor with a white or gray finish shall be
permitted as _________ or _______ conductor where
permanently reidentified to indicate its use, by painting or
other effective means at its termination and at each
location where the conductor is visible and accessible -
Answer-Hot or ungrounded
If the DC resistance of a #500 kcmil copper conductor
1000 feet in length is .0258 ohm, the DC resistance for a
#1000 kcmil copper conductor 1000 feet in length would
be ________ ohm. - Answer-0.0129, is because if you
double the cross-sectional area (csa) of a conductor it will
reduce the resistance by 1/2. .0258/2= .0129
Metal cabinets used for lighting circuit are grounded in
order to _________or ______. - Answer-Limit the voltage
to ground or facilitate overcurrent device operation
,2|Page
Encased with a material or composition or thickness that is
not recognized by the code as electrical insulation is
defined as a covered ______. - Answer-Conductor
A overcurrent trip unit of a circuit breaker shall be
connected in series with each _____. - Answer-
Ungrounded conductor
Receptacle outlets in a residence shall be installed so that
no point along the floor line in any wall space is
______,measured horizontally, from an outlet in that
space. - Answer-More than 6'
In a 2-wire, 120v circuit, the black wire (hot) is a _______
conductor and the white wire is a ______ conductor. -
Answer-Ungrounded, grounded
Grounding conductor shall not be connected by_______. -
Answer-Soldered fittings
You have 120v at the panel and 115v at the load. What is
the percentage of voltage drop? - Answer-4.17%, (120v-
,3|Page
115v=5v), you take the difference which is 5v, and divide it
by your original voltage 120v, 5v/120v=.0417, 4.17%
The ampacity of a solid or stranded conductor of the same
material is the same if it has the same _________. -
Answer-Insulation
The_______ is the service conductors between the
terminals of the service equipment and a point usually
outside the building, clear of building walls, where joined
by tap or splice to the service drop. - Answer-Service
entrance conductors, overhead system
The minimum cover requirement for rigid nonmetallic
conduit without concrete encasement is ________ inches.
- Answer-18"
It is good practice to use ____________ in a long
horizontal straight run of conduit. - Answer-Expansion
To find the circular - mil area of a stranded conductor, the
most accurate method is to________. - Answer-Multiply
, 4|Page
the number of strands by the circular - mil area of one
strand
All equipment located within _________ feet of the inside
wall of a pool shall be grounded. - Answer-5
________ is equipment which utilizes electric energy for
mechanical, chemical, heating, lighting, or similar
purposes. - Answer-Utilization equipment
Incandescent light bulbs when operated at a voltage less
than the rated voltage, will normally result in ________. -
Answer-Longer bulb life
The lead covering on conductors is used_________. -
Answer-For moisture proofing
A plug fuse contains a safety element composed of a
piece of metal that has a ____________. - Answer-Low
resistance and low melting point
DC voltage is reduced with a _____________. - Answer-
Resistor
Master Electrical Closed Book Exam, State Licensing
Board / NEC ||Verified Exam!!!||(NFPA 70) Program,
2026/2027 Questions with Verified A+
Solutions||Newest Exam!!!
An insulated conductor with a white or gray finish shall be
permitted as _________ or _______ conductor where
permanently reidentified to indicate its use, by painting or
other effective means at its termination and at each
location where the conductor is visible and accessible -
Answer-Hot or ungrounded
If the DC resistance of a #500 kcmil copper conductor
1000 feet in length is .0258 ohm, the DC resistance for a
#1000 kcmil copper conductor 1000 feet in length would
be ________ ohm. - Answer-0.0129, is because if you
double the cross-sectional area (csa) of a conductor it will
reduce the resistance by 1/2. .0258/2= .0129
Metal cabinets used for lighting circuit are grounded in
order to _________or ______. - Answer-Limit the voltage
to ground or facilitate overcurrent device operation
,2|Page
Encased with a material or composition or thickness that is
not recognized by the code as electrical insulation is
defined as a covered ______. - Answer-Conductor
A overcurrent trip unit of a circuit breaker shall be
connected in series with each _____. - Answer-
Ungrounded conductor
Receptacle outlets in a residence shall be installed so that
no point along the floor line in any wall space is
______,measured horizontally, from an outlet in that
space. - Answer-More than 6'
In a 2-wire, 120v circuit, the black wire (hot) is a _______
conductor and the white wire is a ______ conductor. -
Answer-Ungrounded, grounded
Grounding conductor shall not be connected by_______. -
Answer-Soldered fittings
You have 120v at the panel and 115v at the load. What is
the percentage of voltage drop? - Answer-4.17%, (120v-
,3|Page
115v=5v), you take the difference which is 5v, and divide it
by your original voltage 120v, 5v/120v=.0417, 4.17%
The ampacity of a solid or stranded conductor of the same
material is the same if it has the same _________. -
Answer-Insulation
The_______ is the service conductors between the
terminals of the service equipment and a point usually
outside the building, clear of building walls, where joined
by tap or splice to the service drop. - Answer-Service
entrance conductors, overhead system
The minimum cover requirement for rigid nonmetallic
conduit without concrete encasement is ________ inches.
- Answer-18"
It is good practice to use ____________ in a long
horizontal straight run of conduit. - Answer-Expansion
To find the circular - mil area of a stranded conductor, the
most accurate method is to________. - Answer-Multiply
, 4|Page
the number of strands by the circular - mil area of one
strand
All equipment located within _________ feet of the inside
wall of a pool shall be grounded. - Answer-5
________ is equipment which utilizes electric energy for
mechanical, chemical, heating, lighting, or similar
purposes. - Answer-Utilization equipment
Incandescent light bulbs when operated at a voltage less
than the rated voltage, will normally result in ________. -
Answer-Longer bulb life
The lead covering on conductors is used_________. -
Answer-For moisture proofing
A plug fuse contains a safety element composed of a
piece of metal that has a ____________. - Answer-Low
resistance and low melting point
DC voltage is reduced with a _____________. - Answer-
Resistor
