Dewalt Test 5

The rating of any single cord-and-plug-connected appliance supplied by a 30-ampere rated branch-circuit shall NOT exceed _______ amperes. A. 30 B. 27 C. 24 D. 16

210.23(B) 30-Ampere Branch Circuit. A rating of any one cord-and-plug-connected utilization equipment shall not exceed 80% percent of the branch-circuit ampere rating.

In dwelling units, at least one (1) 125-volt, single-phase, 15- or 20- ampere rated receptacle shall be installed in bathrooms; the receptacle shall be within at least _____ inches of the outside edge of each basin. A. 12 B. 18 C. 24 D. 36

210.52(D)

What is the MAXIMUM allowable voltage between conductors connected to a branch-circuit supplying luminaires in a residence? A. 120 volts B. 150 volts C. 240 volts D. 250 volts

210.6(A)(1) In dwelling units, hotel, and motels voltage shall not exceed 120-volts

When applying the general method of calculation, it shall be permissible to apply a demand factor of ____ percent to the nameplate rating load of four (4) or more fastened in place electric water heaters that are served by the same feeder or service in a multifamily dwelling unit. A. 50 B. 75 C. 80 D. 90

220.53

When doing residential service and feeder calculations, electric clothes dryers are to be calculated at a MINIMUM of ______ watts (VA) or the nameplate rating, whichever is larger. A. 3,000 B. 4,500 C. 5,000 D. 6,000

220.54 Electric Clothes Dryer The load for household electric clothes dryers in a dwelling unit(s) shall be either 5000 watts (volt-amperes) of the nameplate rating, whichever is larger.

A connection to a driven or buried grounding electrode shall_________.

250.68(A), Exception 1 "shall not be required to be accessible" An encased or buried connection to a concrete-encased, driven, or buried grounding electrode shall not be required to be accessible.

When installing NM cable though bored holes in wooden studs, the holes shall be bored so that the edge of the hole is NOT less than _____ inch(es) from the edge, or the cable shall be protected by a steel plate at least 1/ 16 inch thick.

300.4(D)

Where one-family dwellings with a demand load of not more than 400 amperes are supplied by a single-phase, 120/240-volt electrical system, for sizing the ungrounded (phase) service entrance conductors, an ampacity reduction of NOT less than _________ percent of the ampacity values of NEC Table 310.15(B)(16) maybe used.

310.15(B)(7)

What is the MINIMUM size copper SE cable with Type THHW insulation that may be used as ungrounded (phase) service entrance conductors for a 150-ampere rated, 120/240-volt, single-phase residential service? A. 1/0 AWG B. 1 AWG C. 2 AWG D. 2/0 AWG

310.15(B)(7) Table 310.15(B)(16) 150 amperes x .83 = 124.5 amperes. Therefore, size 1 AWG THHW conductors with an ampacity of 130 amperes should be selected from Table 310.15(B)(16)

When two (2) single-pole switches are mounted on the same strap, the number of conductors permitted in the box shall be reduced by ______ conductor(s) A. one B. two C. three D. four

314.16(B)(4) For each yoke or strap containing one or more devices or equipment, a double volume allowance ....

In general, all residential receptacles installed on 15-and 20-ampere, 120-volt branch circuits are required to________. A. be GFCI B. have a nonmetallic faceplate C. be of the ungrounded type D. be of the grounding type

406.4(A) D. Be of the grounding type

What is the MAXIMUM cord length for the cord supplying a cord-and-plug-connected dishwasher installed under a kitchen counter in a dwelling unit?

422.16(B)(2)(2) 4 Feet

The service equipment for a mobile home may be ______ the mobile home. A. installed inside B. mounted on the exterior side of C. mounted on a pole, not more than 30 feet from D. mounted on a pole, not more than 40 feet from

550.32(A)

A conductor that is connected to establish electrical continuity and conductivity between metal parts required to be electrically connected is defined as a ___________ conductor in the NEC.

Bonded- Connected to establish electrical continuity and conductivity Grounded (Grounding)- Connected to ground or to conductive body that extends the ground connection

A 240-volt, single-phase, 30 amperes rated, electric clothes dryer has a volt-ampere rating of _____ VA. A. 5,000 B. 7,200 C. 8,000 D. 15,400

Power Formula P = Amperes x Volts P = 30 amperes x 240 volts = 7,200VA B.

A branch-circuit supplying a 5 kW wall-mounted oven and a 7 kW counter-mounted cooktop in a residence will have a demand load of ______ kW on the ungrounded service-entrance conductors when applying the general (standard) method of calculation for dwelling.

Table 220.55 & Note 3 Use column B- 2 appliances = 65% demand 5kW + 7kW = 12kW (total connected load) 12kW x 65% = 7.8kW (demand load)

The MINIMUM size copper equipment grounding conductor required for equipment served by a 40-ampere rated branch circuit is ______ AWG. A. 10 B. 8 C. 12 D. 14

Table 250.122