NEC Commercial Electrical Test #1
Exam Questions & Answers (Grade
A+)
A single panel or group of panels units designated for assembly in
the form of a single panel, including buses and automatic over-
current devices, and equipment with or without switches for the
control of light, heat or power circuits.
(100 Definitions) -
correct answer ✅panel-board
An enclosed channel of metal or nonmetallic materials designed
expressly, with additional functions as permitted in this code.
(100 Definitions) -
correct answer ✅raceway
The overhead service conductors from the last pole or other aerial
support to and including the splices, if any, connecting to the
service-entrance conductors at the building or other structure.
(100 Definitions) -
correct answer ✅service conductor
The space equal to the width and depth of equipment and
extending from the floor to the height of _______ feet above the
equipment or to the structural ceiling whichever is lower, shall be
,NEC Commercial Electrical Test #1
Exam Questions & Answers (Grade
A+)
dedicated to the electrical installation.(110.26 Spaces About
Electrical Equipment / E. Dedicated Equipment Space / 1. Indoor /
a) -
correct answer ✅6 ft
For equipment rated 1200 amperes or more and over 6 feet wide
that contain over-current devices, there shall be one entrance not
less than ______ inches wide and ______ feet high at each end of
the working space.
(110.26 Spaces About Electrical Equipment / C. Entrance to and
Egress from Working Spaces/ 2. Large Equipment.) -
correct answer ✅24 in wide,
6 1/2 ft high
The identification of terminals to which grounded conductor is to
be connected shall be substantially ______in color.
(200.9 Means of Identification of Terminals) -
correct answer ✅White
,NEC Commercial Electrical Test #1
Exam Questions & Answers (Grade
A+)
Appliances receptacle outlets installed in a dwelling unit for specific
appliances, such as laundry equipment, shall be installed within
_______ feet of the intended location of the appliance.
(210.50 General / C. Appliance Receptacle Outlets) -
correct answer ✅6 feet
Required 125-volt, 15-and 20-ampere receptacles in dwelling units
shall be installed so that at no point measured horizontally along
the floor line in any wall space is more than ______ feet from a
receptacle outlet.
(210.52 Dwelling Unit Receptacle Outlets / A. General / 1. Spacing) -
correct answer ✅6 feet
A required 125-volt, 15-and 20-ampere receptacle in dwelling units
shall be installed in any wall space _____ feet or more in width.
(210.52 Dwelling Unit Receptacle Outlets / A. General / 1. Wall
Space) -
correct answer ✅2 feet
, NEC Commercial Electrical Test #1
Exam Questions & Answers (Grade
A+)
Receptacle outlets in floors shall not be counted as part of the
required number of receptacle outlet unless located within ______
inches of the wall.
(210.52 Dwelling Unit Receptacle Outlets / A. General / 3. Floor
Receptacle) -
correct answer ✅18 inches
In dwelling units, hallways of ______ feet or more in length shall
have at least one receptacle outlet.
(210.52 Dwelling Unit Receptacle Outlets / H. Hallways) -
correct answer ✅10 feet
One receptacle outlet shall be installed at an accessible location for
the servicing of heating, air-conditioning, and refrigeration within
______ feet and on the same level as the equipment.
(210.63 Heating, Air-Conditioning, and Refrigeration Equipment
Outlet) -
correct answer ✅25 ft
Interior stairs shall have switches at each end, where the stairway
between floor levels has _____ risers or more.
Exam Questions & Answers (Grade
A+)
A single panel or group of panels units designated for assembly in
the form of a single panel, including buses and automatic over-
current devices, and equipment with or without switches for the
control of light, heat or power circuits.
(100 Definitions) -
correct answer ✅panel-board
An enclosed channel of metal or nonmetallic materials designed
expressly, with additional functions as permitted in this code.
(100 Definitions) -
correct answer ✅raceway
The overhead service conductors from the last pole or other aerial
support to and including the splices, if any, connecting to the
service-entrance conductors at the building or other structure.
(100 Definitions) -
correct answer ✅service conductor
The space equal to the width and depth of equipment and
extending from the floor to the height of _______ feet above the
equipment or to the structural ceiling whichever is lower, shall be
,NEC Commercial Electrical Test #1
Exam Questions & Answers (Grade
A+)
dedicated to the electrical installation.(110.26 Spaces About
Electrical Equipment / E. Dedicated Equipment Space / 1. Indoor /
a) -
correct answer ✅6 ft
For equipment rated 1200 amperes or more and over 6 feet wide
that contain over-current devices, there shall be one entrance not
less than ______ inches wide and ______ feet high at each end of
the working space.
(110.26 Spaces About Electrical Equipment / C. Entrance to and
Egress from Working Spaces/ 2. Large Equipment.) -
correct answer ✅24 in wide,
6 1/2 ft high
The identification of terminals to which grounded conductor is to
be connected shall be substantially ______in color.
(200.9 Means of Identification of Terminals) -
correct answer ✅White
,NEC Commercial Electrical Test #1
Exam Questions & Answers (Grade
A+)
Appliances receptacle outlets installed in a dwelling unit for specific
appliances, such as laundry equipment, shall be installed within
_______ feet of the intended location of the appliance.
(210.50 General / C. Appliance Receptacle Outlets) -
correct answer ✅6 feet
Required 125-volt, 15-and 20-ampere receptacles in dwelling units
shall be installed so that at no point measured horizontally along
the floor line in any wall space is more than ______ feet from a
receptacle outlet.
(210.52 Dwelling Unit Receptacle Outlets / A. General / 1. Spacing) -
correct answer ✅6 feet
A required 125-volt, 15-and 20-ampere receptacle in dwelling units
shall be installed in any wall space _____ feet or more in width.
(210.52 Dwelling Unit Receptacle Outlets / A. General / 1. Wall
Space) -
correct answer ✅2 feet
, NEC Commercial Electrical Test #1
Exam Questions & Answers (Grade
A+)
Receptacle outlets in floors shall not be counted as part of the
required number of receptacle outlet unless located within ______
inches of the wall.
(210.52 Dwelling Unit Receptacle Outlets / A. General / 3. Floor
Receptacle) -
correct answer ✅18 inches
In dwelling units, hallways of ______ feet or more in length shall
have at least one receptacle outlet.
(210.52 Dwelling Unit Receptacle Outlets / H. Hallways) -
correct answer ✅10 feet
One receptacle outlet shall be installed at an accessible location for
the servicing of heating, air-conditioning, and refrigeration within
______ feet and on the same level as the equipment.
(210.63 Heating, Air-Conditioning, and Refrigeration Equipment
Outlet) -
correct answer ✅25 ft
Interior stairs shall have switches at each end, where the stairway
between floor levels has _____ risers or more.
