Code, Standards, and Practices 2, Level I Reviews

What is the DC resistance at 75°C per 1,000 feet of 2/0 AWG aluminum conductors?

0.159 Ω

What is the maximum size conductor that is generally permitted to be a solid conductor were installed in a raceway?

10 AWG 310.3(C)

For a one-family dwelling, outside feeder disconnecting means shall have a rating of not less than _______ amperes, 3-wire.

100 225.39(C)

Branch circuits exceeding _________, nominal, between conductors shall be permitted to supply utilization equipment in installations where conditions of maintenance and supervision ensure that only qualified persons service the installation.

1000 V 235.6

A completely enclosed incandescent luminaire surface-mounted on the wall above the door of a clothes closet shall have a clearance of at least __________ from the storage space.

12" 410.16(D)(1)

In guest rooms or guest suites of hotels, motels, and similar occupancies, the voltage shall not exceed ______ between conductors that supply the terminals of luminaires.

120 V 210.6(A)(1)

Branch-circuit conductors serving a noncontinuous load of 10 amperes are protected by a 30-ampere overcurrent protective device. How much continuous load can generally be added to the circuit?

16A 210.18(A)(1)

Receptacle outlets shall be located on or above, but not more than ______ above, the countertop or work surface.

20' 210.52(C)(3)(1)

The permissible load, in amperes, for an appliance fastened in place and connected to a 20-ampere branch circuit that also feeds lighting outlets and cord-and-plug-connected equipment is __________.

20A x 50% = 10A 210.23(B)(2)

Circuits exceeding 277 V, nominal, to ground and not exceeding 1,000 V, nominal, between conductors shall be permitted to supply the auxiliary equipment of electric-discharge lamps mounted in permanently installed luminaires where the luminaires are mounted not less than a height of ________ feet on poles or similar structures for the illumination of outdoor areas such as highways, roads, bridges, athletic fields, or parking lots.

22 210.6(D)

In general, at least one 125-volt, single-phase, 15- or 20-ampere rated receptacle outlet shall be installed in an accessible location within ______ of the indoor electrical service equipment. The required receptacle outlet shall be located within the same room or area as the service equipment.

25' 210.63

Horizontal clearances from buildings cannot be less than ______ for outside branch circuits and feeders operating at not over 1,000 volts, nominal.

3' 225.19(C)

Calculate the total square mil area of a copper bus bar that measures 4 inches wide by 7/8 inch thick.

3,500,000 mils²

The circular mil area of a 400 Kcmil Uncoated Copper conductor is _________.

400,000 cmils

The branch-circuit conductors for a household electric range rated in excess of 8 3/4 kilowatts shall generally have a rating of not less than _________.

40A 210.19(C)

All 15- and 20-ampere, 125- and 250-volt, nonlocking-type receptacles in the areas specified in Section 406.12 shall be listed as tamper-resistant receptacles. An exception to this requirement applies when the receptacle is located more than ______ above the floor.

5 ½ '

The circular mil area of a 3 AWG Aluminum conductor is ________.

52,620 cmils

In general, all switches and circuit breakers used as switches shall be installed such that the center of the grip of the operating handle, when in its highest position, is not more than ________ above the floor or working platform.

6' 7" 404.8(A)

Overhead service conductors are generally not permitted to be smaller than ______ copper or _______ aluminum.

8 AWG / 6 AWG 230.23(B)

What is the minimum number of required receptacles for this room?

8 receptacles, which must be protected by AFCI 210.12(A) & 210.52(A)

Overhead service conductors shall have a vertical clearance of not less than ______ above the roof surface.

8' 6" 230.24(A)

A closet in dwelling unit is not required to have 125-volt, 15- and 20-ampere receptacle but if you installed one that receptacle outlet is required to be ________ protected.

AFCI 210.52(A), 210.12(B)

A _________ is a circle with a diameter of one mil.

Circular Mil

With two exceptions, the ungrounded and grounded circuit conductors of each multiwire branch circuit shall be grouped by wire markers, cable ties, or similar means in at least one location within the ____________.

Enclosure 210.4(D) & 200.4(B)

The NEC requires that all 125-volt, single-phase, 15 and 20 A receptacles in bathrooms of dwelling units have _______ protection.

GFCI 210.8(A)(1)

_____________ protection must be provided for outlets that supply dishwashers installed in dwelling unit locations.

GFCI 422.5(A)(7)

The general rule requires the equipment grounding conductor to be identified by a continuous _______ color or a continuous green color with one or more yellow stripes, unless it is bare.

Green 210.5(B) & 250.119

Thermal insulation should not be installed above a recessed luminaire or within 3" of the recessed luminaire's enclosure, wiring compartment, ballast, transformer, LED driver, or power supply unless the luminaire is identified as Type ____ for insulation contact.

IC 410.116(B)

A __________ of wire is one foot long with a diameter of one mil.

Mil Foot

Trees are __________ to be used for support of overhead conductor spans of outside branch circuits and feeders.

Not permitted 225.26

At least one lighting outlet controlled by a listed wall-mounted control device shall be installed in every habitable room, kitchen, and bathroom. The wall-mounted control device shall be located near an entrance to the room on a wall. But for other than kitchens and bathrooms, one or more ______________ controlled by a listed wall-mounted control device shall be permitted in lieu of lighting outlets.

Receptacles 210.70(A)(1) Exception No. 1

Each multiwire branch circuit shall be provided with a means that will simultaneously disconnect all _________ conductors at the point where the branch circuit originates.

Ungrounded 210.4(B)

Where one or more lighting outlet(s) are installed for interior stairways, there shall be a listed wall-mounted control device at ________ floor level and landing level that includes an entryway to control the lighting outlet(s) where the stairway between floor levels has 6 risers or more.

each 210.70(A)(2)(3)

With two exceptions, each branch-circuit disconnect rated 1,000 amperes or more and installed on solidly grounded wye electrical systems of more than 150 volts to ground, but not exceeding 1,000 volts phase-to-phase, shall be provided with _____ in accordance with the provisions of Section 230.95

ground-fault protection of equipment 210.13

In hotels, motels, or similar occupancies, guest rooms or guest suites shall have at least one lighting outlet controlled by a listed wall-mounted control device installed in every room ______ and Bathroom.

habitable 210.70(B)

________________________ is a branch circuit that consists of two or more ungrounded conductors that have a voltage between them and a grounded conductor that has equal voltage between it and each ungrounded conductor of the circuit and that is connected to the neutral or grounded conductor of the system.

multiwire branch circuit 100