National Electrical Code. Chapter 2 Review. Articles 200 thru 250.

What is the minimum size copper equipment bonding jumper for a 40A rated circuit?

10 AWG.

Overhead service conductors shall have a minimum vertical clearance of _____ ft from final grade over residential property and driveways, as well as over commercial areas not subject to truck traffic where the voltage does not exceed 300 volts-to-ground.

12ft.

For installations that supply only limited loads of a single branch circuit, the service disconnecting means shall have a rating not less than _____.

15A.

At least one receptacle outlet shall be located within _____ ft of the outer end of a peninsular countertop or work surface.

2 ft.

The size of the grounding electrode conductor for a building or structure supplied by a feeder shall not be smaller than that identified in _____, based on the largest ungrounded supply conductor.

250.66.

The vertical clearance of final spans of overhead service conductors above, or within _____ ft measured horizontally of platforms, projections, or surfaces that will permit personal contact shall be maintained in accordance with 230.24(B).

3 ft.

Where rock bottom is encountered at an angle up to 45 degrees when driving a rod or pipe electrode, the electrode shall be permitted to be buried in a trench _____ deep.

30 in.

At the time of installation, grounded conductors _____ AWG or larger can be identified by distinctive white or gray markings at their terminations.

4 AWG.

In other than dwelling units, GFCI protection shall be provided for all 15A and 20A, 125V, single-phase receptacles installed within _____ ft from the top inside edge of the bowl of a sink.

6 ft.

Each feeder disconnect rated 1,000A or more and installed on solidly grounded wye electrical systems of more than 150V to ground, but not exceeding _____ phase-to-phase, shall be provided with ground-fault protection of equipment in accordance with 230.95.

600 Volts.

A separate water piping bonding jumper shall be required if the metal frame of a building or structure is used as the grounding electrode for a separately derived system and is bonded to the metal water piping in the area served by the separately derived system.

False.

An encased or buried connection to a concrete-encased, driven, or buried grounding electrode shall be accessible.

False.

Where bonding jumper(s) are used to connect the grounding electrodes together to form the grounding electrode system, rebar is permitted to be used as a conductor to interconnect the electrodes.

False.

Alternating-current circuits of less than 50V shall be grounded if supplied by a transformer whose supply system exceeds 150 volts-to-ground.

True.

At least one lighting outlet controlled by a listed wall-mounted control device shall be installed in every habitable room, kitchen, and bathroom of a dwelling unit.

True.

The grounded conductor of each separately derived system shall be bonded to the nearest available point of the metal water piping system(s) in the area served by each separately derived system and each bonding jumper shall be sized in accordance with Table 250.102(C)(1) based on the largest ungrounded conductor of the separately derived system.

True.

The grounding of electrical systems, circuit conductors, surge arresters, surge-protective devices, and conductive normally noncurrent-carrying metal parts of equipment shall be installed and arranged in a manner that will prevent objectionable current.

True.

Underground service conductors shall have _____.

adequate mechanical strength and sufficient ampacity for the loads calculated.

Where a method to reduce clearing time for fuses rated 1,200A or greater is required in accordance with 240.67(B), the _____ reduction system shall be performance tested when first installed on site.

arc energy.

Where the lighting load for a non-dwelling building is designed and constructed to comply with an energy code adopted by the local authority, the lighting load shall be permitted to be calculated using the unit values specified in the _____.

energy code.

A(n) ______ shall be used to connect the grounding terminal of a grounding-type receptacle to a grounded box.

equipment bonding jumper.

Concrete-encased electrodes of ______ shall not be required to be part of the grounding electrode system where the steel reinforcing bars or rods aren't accessible for use without disturbing the concrete.

existing buildings or structures.

120V, single-phase, 15A and 20A branch circuits supplying outlets and devices installed in _____ of hotels and motels shall be protected by any of the means described in 210.12(A)(1) through (6).

guest rooms.

The 125 percent multiplier for a continuous load as specified in 210.20(A) _____ included when using the unit loads in table 220.12 for calculating the minimum lighting load for a specified occupancy.

is included.

For attics and underfloor spaces, utility rooms, and basements in all occupancies, at least _____ lighting outlet(s) containing a switch or controlled by a wall switch shall be installed where these spaces are used for storage or contain equipment requiring servicing.

one.

A service disconnecting means shall be installed at a(an) _____ location.

readily accessible.

In grounded systems, normally noncurrent-carrying electrically conductive materials that are likely to become energized shall be connected _____ in a manner that establishes an effective ground-fault current path.

together and to the electrical supply source.

If a building or structure is supplied by a service or feeder with _____ or more disconnecting means in separate enclosures, the grounding electrode connections shall be made in accordance with 250.64(D)(1), 250.64(D)(2), or 250.64(D)(3).

two.

Type MC cable provides an effective ground-fault current path and is recognized by the NEC as an equipment grounding conductor _____.

when it contains an insulated or uninsulated equipment grounding conductor in compliance with 250.118(1)