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Introduction to the National Electrical Code NEC Chapter 5 contains _____. ️️c. information on special occupancy areas What is the purpose of a dedicated circuit in residential wiring? A dedicated circuit is used to supply power to a specific applian$9.79
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Introduction to the National Electrical Code NEC Chapter 5 contains _____. ️️c. information on special occupancy areas What is the purpose of a dedicated circuit in residential wiring? A dedicated circuit is used to supply power to a specific applian
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Course
Introduction to the National Electrical Code NEC
Institution
Introduction To The National Electrical Code NEC
26105-17 Introduction to the National Electric Code
Supplemental Excercises
The NEC® is made up of __________ chapters. ️️9
What is the minimum number of receptacles required for a bedroom in a residential dwelling?
A minimum of two receptacles are required for each bedroom to ensure...
26105-17 Introduction to the National Electric Code
Supplemental Excercises
The NEC® is made up of __________ chapters. ✔️✔️9
What is the minimum number of receptacles required for a bedroom in a residential dwelling?
A minimum of two receptacles are required for each bedroom to ensure that there are adequate outlets
for use. ✔️✔️
What is the required height for a receptacle located above a kitchen countertop?
A receptacle above a kitchen countertop must be installed at least 15 inches above the countertop to
provide easy accessibility. ✔️✔️
How should a receptacle be protected if installed outdoors or in wet areas?
Receptacles installed outdoors or in wet areas must be GFCI (Ground Fault Circuit Interrupter) protected
to reduce the risk of electrical shock. ✔️✔️
What is the rule for grounding electrical systems in mobile homes?
Electrical systems in mobile homes must be grounded to an approved ground electrode, such as a
ground rod, and bonded to the home’s frame. ✔️✔️
What is the required protection for electrical wiring in attic spaces?
Wiring in attic spaces must be protected from physical damage, often requiring conduit or other
protective coverings where the wires are exposed. ✔️✔️
What is the NEC requirement for junction boxes in ceilings or walls?
Junction boxes must be accessible for maintenance and repair, and cannot be hidden behind permanent
structures like drywall without an access panel. ✔️✔️
What is the rule for the use of non-metallic sheathed cable (NM cable) in commercial buildings?
, Non-metallic sheathed cable (NM cable) is generally prohibited in commercial buildings for use as a
primary wiring method due to its limited protection against physical damage. ✔️✔️
What is the maximum allowable voltage drop for electrical circuits under the NEC?
The maximum allowable voltage drop is typically 3% for branch circuits and 5% for feeder circuits to
ensure efficient operation and safety. ✔️✔️
What is required for the installation of a subpanel in a dwelling?
A subpanel must be connected to the main panel with a properly sized feeder cable, include a separate
ground and neutral bus, and be properly bonded to the building’s ground system. ✔️✔️
When is a fire alarm system required to be connected to a building’s electrical system?
A fire alarm system is required to be connected to the building’s electrical system to ensure it remains
operational during power outages, often using battery backup. ✔️✔️
What is the NEC rule for the installation of outlets in unfinished basements?
Outlets in unfinished basements must be installed with GFCI protection and be placed a minimum of 1.5
feet above the floor to prevent water damage. ✔️✔️
What is the minimum spacing required between ceiling-mounted lights in a residential room?
The minimum spacing between ceiling-mounted lights should be no less than 4 feet apart to ensure
proper illumination of the space. ✔️✔️
What does “bonding” mean in an electrical system?
Bonding refers to the practice of connecting all non-current-carrying metal parts of an electrical system
to ensure they have the same electrical potential, reducing shock hazards. ✔️✔️
What is the rule for the installation of smoke detectors in new residential construction?
Smoke detectors must be installed in every sleeping room, outside each sleeping area, and on every
level of the home, as well as interconnected so that if one sounds, all sound. ✔️✔️
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