B&G Chapter 4 Practice Questions

Replacement luminaires are not required to be connected to an equipment grounding conductor if no equipment grounding conductor exists at the outlet box and the luminaire is _____.

GFCI protected

Luminaires and equipment shall be mechanically connected to an equipment grounding conductor as specified in 250.118 and shall be sized in accordance with _____.

Table 250.122

Snap switches are considered to be part of the effective ground-fault current path when _____.

b or c - the switch is mounted with metal screws to a metal box or a metal cover that is connected to an equipment grounding conductor - an equipment grounding conductor or equipment bonding jumper is connected to the equipment grounding termination of the snap switch

Where attachment to an equipment grounding conductor does not exist in the receptacle enclosure, a non-grounding-type receptacle shall be permitted to be replaced with a GFCI-type receptacle; however, some equipment or appliance manufacturers require that the _____ to the equipment or appliance includes an equipment grounding conductor.

branch circuit

Where multimotor and combination-load equipment for air-conditioning and refrigeration is installed outdoors on a roof, a(n) _____ conductor of the wire type shall be installed in outdoor portions of metallic raceway systems that use non-threaded fittings.

equipment grounding

Where a grounding means exists in the receptacle enclosure a(n) _____-type receptacle shall be used.

grounding

When separate equipment grounding conductors are provided in panelboards, a _____ shall be secured inside the cabinet.

terminal bar

Article 410 covers luminaires, portable luminaires, lampholders, pendants, incandescent filament lamps, arc lamps, electric-discharge lamps, and _____, and the wiring and equipment forming part of such products and lighting installations.

All of these - decorative lighting products - lighting accessories for temporary seasonal and holiday use - portable flexible lighting products

Snap switches in listed assemblies are not required to be connected to an equipment grounding conductor if _____.

All of these - the device is provided with a nonmetallic faceplate that cannot be installed on any other type of device and the device does not have mounting means to accept other configurations of faceplates - the device is equipped with a nonmetallic yoke -all parts of the device that are accessible after installation of the faceplate are manufactured of nonmetallic material

The metal mounting yoke of a replacement switch is not required to be connected to an equipment grounding conductor if the wiring at the existing switch does not contain an equipment grounding conductor, and the _____.

a OR b - switch faceplate is nonmetallic with nonmetallic screws - replacement switch is GFCI protected

Where attachment to an equipment grounding conductor does not exist in the receptacle enclosure, a non-grounding-type receptacle(s) shall be permitted to be replaced with a GFCI-type receptacle(s) where supplied through a ground-fault circuit interrupter and _____ shall be marked "GFCI Protected" and "No Equipment Ground," visible after installation.

a OR b - the receptacle(s) - their cover plates

When non-grounding-type receptacles are replaced by GFCI-type receptacles where attachment to an equipment grounding conductor does not exist in the receptacle enclosure, _____ shall be marked "No Equipment Ground."

a OR b - these receptacles -their cover plates

Receptacles incorporating an isolated grounding conductor connection intended for the reduction of electrical noise shall be identified by _____ on the face of the receptacle.

an orange triangle

Metal enclosures for switches or circuit breakers shall be connected to the circuit _____.

equipment grounding conductor

Metal faceplates for snap switches, including dimmer and similar control switches, shall be _____.

grounded