B&G Chapter 6 Practice Questions

Listed flexible metal conduit or listed liquidtight flexible metal conduit for secondary circuit conductors for neon tubing can be used as a bonding means if the total accumulative length of the conduit in the secondary circuit does not exceed _____ ft.

100

Wet-niche luminaires shall be connected to an equipment grounding conductor not smaller than _____ AWG.

12

A grounded _____-wire PV system has one functional grounded conductor.

2

For equipotential bonding, the perimeter surface to be bonded shall be considered to extend for _____ ft horizontally beyond the inside walls of the pool and shall include unpaved surfaces and other types of paving.

3

Permanently installed swimming pools include those constructed in the ground or partially in the ground, and all others capable of holding water in a depth greater than _____ in.

42

Storable swimming, wading, or immersion pools; or storable/portable spas and hot tubs are swimming, wading, or immersion pools that are intended to be stored when not in use, constructed on or above the ground and are capable of holding water to a maximum depth of _____ in., or a pool, spa, or hot tub constructed on or above the ground, with nonmetallic, molded polymeric walls or inflatable fabric walls regardless of dimension.

42

Metal raceways and metal piping within _____ ft of the inside walls of an indoor spa or hot tub, and not separated from the indoor spa or hot tub by a permanent barrier, shall be bonded together.

5

Perimeter surfaces separated from the pool by a permanent wall or building _____ ft in height or more shall require equipotential bonding only on the pool side of the permanent wall or building.

5

Where connecting to transformers or power supplies for pool lights in accordance with 680.23(F)(1), liquidtight flexible metal conduit shall be permitted but the length shall not exceed _____ ft for any one length or exceed _____ ft in total length used.

6, 10

Which of the following shall be bonded?

All of these - Metal parts of electrical equipment associated with the pool water circulating system. - Pool structural metal. - Metal fittings within or attached to the pool.

A pool light junction box connected to a conduit that extends directly to a forming shell shall be _____ for this use.

All of these - listed - identified - labeled

Devices _____ for bonding the metallic frames of PV modules shall be permitted to bond the exposed metallic frames of PV modules to the metallic frames of adjacent PV modules.

All of these - listed - labeled - identified

The 8 AWG solid bonding jumper required for equipotential bonding in the area of hydromassage bathtubs shall not be required to be extended to any _____.

Any of these - remote panelboard - service equipment - electrode

The provisions of 690 apply to solar _____ systems, including inverter(s), array circuit(s), and controller(s) for such systems.

PV

Where no overcurrent protection is provided for the PV circuit, an assumed overcurrent device rated in accordance with 690.9(B) shall be used to size the equipment grounding conductor in accordance with _____.

Table 250.122

Where installed for hydromassage bathtubs, _____ shall be bonded together.

a and b - all exposed metal surfaces that are within 5 ft of the inside walls of the tub and not separated from the tub area by a permanent barrier - electrical devices and controls that are not associated with the hydromassage tubs and that are located within 5 ft from such units

Branch circuits installed in corrosive environments for pool-associated motors shall be installed in wiring methods including _____ conduit when installed in a corrosive environment. Any wiring method employed shall include an insulated copper equipment grounding conductor sized in accordance with Table 250.122, but not smaller than 12 AWG.

a or b - PVC - rigid metal

Exposed noncurrent-carrying metal parts of an information technology system shall be _____.

a or b - bonded to an equipment ground-ing conductor - double insulated

In the interior of a dwelling unit or in the interior of another building or structure associated with a dwelling unit, any of the wiring methods recognized or permitted in Chapter 3 of this Code shall be permitted to be used for the connection to the motor disconnecting means and the motor, heating, and control loads that are part of a self-contained _____ or a packaged spa or hot tub equipment assembly.

a or b - spa - hot tub

A mechanically integrated assembly of PV modules or panels with a support structure and foundation, tracker, and other components, as required, to form a dc or ac power-producing unit, is known as a(n) "_____."

array

A ground-fault protection device or system required for PV systems shall _____.

b and c - detect a ground-fault current - be listed for PV ground-fault protection

Metal piping systems associated with a fountain shall be bonded to the equipment grounding conductor of the _____.

branch circuit supplying the fountain

The _____ conductor terminals of a junction box (pool deck box), transformer enclosure, or other enclosure in the supply circuit to a wet-niche luminaire shall be connected to the equipment grounding terminal of the panelboard.

equipment grounding

A wet-niche luminaire is intended to be installed in a _____.

forming shell

Devices and systems used for mounting PV modules that also provide grounding of the module frames shall be _____ for the purpose of grounding PV modules.

identified

For PV systems, metallic mounting structures used for grounding purposes shall be _____ as equipment grounding conductors or have _____ bonding jumpers or devices connected between the separate metallic sections and be bonded to the grounding system.

identified, identified

A solar PV system that operates in parallel with, and may deliver power to, an electrical production and distribution network is known as a(n) "_____ system."

interactive

For PV systems, a(n) _____ is a device that changes direct- current input to an alternating-current output.

inverter

When installed for swimming pools, grounding and bonding terminals shall be _____ for direct burial use.

listed

For hydromassage bathtubs, small conductive surfaces not likely to become energized, such as air and water jets, supply valve assemblies, and drain fittings not connected to metallic piping, and towel bars, mirror frames, and similar nonelectrical equipment not connected to _____ shall not be required to be bonded.

metal framing

The direct-current system grounding connection shall be made at any _____ point(s) on the PV output circuit.

single

Faulted circuits required to have ground-fault protection in a photovoltaic system shall be isolated by automatically disconnecting the _____ conductors, or the inverter charge controller fed by the faulted circuits shall automatically stop supplying power to output circuits.

ungrounded

Wet-niche luminaires installed in swimming pools shall be removable from the water for inspection, relamping, or other maintenance. The luminaire maintenance location shall be accessible _____.

without entering the pool water