NEC Code Section 300

In both exposed and concealed locations, where a cable or nonmetallic raceway-type wiring method is installed parallel to framing members such as joints, rafters, or studs or furring strips, the nearest outside surface of the cable or raceway must be ____________ the nearest edge of the framing member where nails or screws are likely to penetrate. (a) not less than 1 ¼ inch from (b) immediately adjacent to (c) not less than 1/16 inch from (d) 90 away from

(a) Not Less Than 1 1/4 inch from

Cables laid in wood notches require protection against nails or screws by using a steel plate at least _________ thick, installed before the building finish is applied. A thinner plate that provides equal or better protection may be used if listed and marked. (a) 1/16 in. (b) 1/8 in. (c) ½ in. (d) none of these

(a) 1/16th

What is the minimum cover requirement in inches for UF cable supplying power to a 120V, 15A GFCI-protected circuit outdoors under a driveway of a one-family dwelling? (a) 12 in. (b) 24 in. (c) 16 in. (d) 6 in.

(a) 12 inchs

When unable to maintain the minimum required distance from the edge of a wood framing member when installing a cable or nonmetallic raceway parallel to framing members, the cable or raceway must be protected from penetration by screws or nails be a steel plate or busing at least ____________ and of appropriate length and width to cover the area of the wiring. A thinner plate that provides equal or better protection may be used if listed and marked. (a) 1/4 in. thick (b) 18 in. thick (c) 1/16 in. thick (d) 24 gauge

(c) 1/16 inch thick

When installing raceways underground in rigid nonmetallic conduit and other approved raceways, there must be a minimum of __________ of cover. (a) 6 in. (b) 12 in. (c) 18 in. (d) 22 in.

(c) 18 inches

UF cable used with a 24V landscape lighting system is permitted to have a minimum cover of _____________. (a) 6 in. (b) 12 in. (c) 18 in. (d) 24 in.

(c) 18 inchs

Where underground conductors and cables emerge from underground, they must be protected be enclosures or raceways to a point __________ above finished grade. In no case can the protection be required to exceed 18 in. below grade. (a) 3 ft (b) 6 ft (c) 8 ft (d) 10 ft

(c) 8ft

Where NM cable pass through cut or drilled slots or holes in metal members, the cable needs to be protected by _____________ securely covering all metal edges fastened in the opening prior to installation of the cable. (a) listed bushing (b) listed grommets (c) plates (d) a or b

(d) Listed Bushings or Listed Grommets.

Backfill used for underground wiring must not ________________. (a) damage the wiring method (b) prevent compaction of the fill (c) contribute to the corrosion of the raceway (d) all of these

(d) damage the wiring method,prevent compaction of the fill,contribute to the corrosion of the raceway ( all of these )

Nonferrous raceways, cable trays, cablebus, auxiliary gutters, cable armor, boxes, cable sheathing, cabinets, elbows, couplings, nipples, fittings, supports, and support hardware ____________ must be provided with supplementary corrosion protection. (a) embedded or encased in concrete (b) in direct contact with the earth (c) likely to become energized (d) a or b

(d) embedded or encased in concrete or in direct contact with the earth

All Conductors of a Circuit, including the grounded equipment grounding conductors, must be contained within the same ? (a) raceway (b) cable (c) trench (d) all of these

All of the above - Raceway, Cable Or Trench

Circuit Conductors that operate at 277v(with 600v insulation) may occupy the same enclosure or raceway with a 48v DC conductors that have a insulation rating of 300v? True or False

True, Conductors may share a raceway or enclosure as long as it's insulation is rated for the highest voltage in enclosure.