What size copper wire is needed for a 240-volt, single-phase branch circuit supplying a 50-ampere load at a distance of 175 feet? Hold the voltage drop within the recommended Code limit.

What is the voltage drop on a single-phase, 240-volt circuit carrying 80 amperes on a 3 AWG copper conductor at a distance of 250 feet? (Use k = 13.2.)

What is the voltage drop on a 3-phase, 480-volt circuit carrying 50 amperes on an 8 AWG copper conductor at a distance of 200 feet? (Use k = 13.2.)

The lighting load for a two-story, single-family dwelling unit that has outside dimensions of 32 feet by 85 feet is   ?  .

What is the maximum number of general purpose receptacle outlets permitted on a 15-ampere 120-volt dwelling unit branch circuit?

Compute the minimum ampacity for conductors of a branch circuit that supply a noncontinuous load of 13 amperes and a continuous load of 11 amperes.

A fixed, nonmotor appliance in a dwelling unit has a nameplate maximum rating of 40 amperes. The maximum permitted rating of the OCPD required to supply this noncontinuous appliance is   ?  .

What is the minimum standard size fuse rating in amperes that can be used to protect a branch circuit supplying a 32 kW, 3-phase, 480-volt, in-duct type electric heater? According to 424.4(B), fixed electric heaters are considered as a continuous load for branch circuits sizing.

What is the service neutral conductor load (VA) for the electric ranges installed in a six-unit, multifamily dwelling when the ranges are rated 9 kW, 9 kW, 10 kW, 11 kW, 12 kW, and 12 kW?

The load for household electric clothes dryers in dwelling units shall be   ?   or the nameplate rating.

Where the air-conditioning load is larger than the heating load, the air-conditioning load is calculated at   ?   of the nameplate rating of the equipment for optional feeder and service calculations.

The total lighting feeder demand (line and neutral) for a 3,000-square-foot dwelling unit, including two small-appliance circuits and one laundry branch circuit, is   ?  . Apply the demand factors of Section 220.42.

In each dwelling unit, the feeder load shall be computed at   ?   for each 2-wire small-appliance branch circuits as covered by Section 210.11(C)(1) for small appliances supplied by 15- or 20-ampere receptacles on 20-ampere branch circuits in the kitchen, pantry, dining room, and breakfast room.

What is the minimum size service in amperes for a medium size auto body repair and painting facility with a net calculated load of 295,650 VA (in accordance with Article 220) for a 277/480-volt, 3-phase, 4-wire service?

For a feeder supplying household electric ranges, wall-mounted ovens, counter-mounted cooking units, and electric dryers, the maximum unbalanced load on the neutral conductor shall be considered as   ?   of the load on the ungrounded conductors, as determined in accordance with Table 220.55 for ranges and Table 220.54 for dryers.

A four-unit apartment building has a 7.5-kW, 240-volt electric dryer installed in each unit. The total line feeder demand for the dryers is   ?  .

Determine the line feeder demand for six 5-kW household dryers installed in a multifamily dwelling.

Calculate the lighting feeder demand for a commercial office building supplied by a 120/208-volt, 3-phase, 4-wire distribution system. The building measures 166 feet long and 95 feet wide with four floors.

Calculate the feeder line demand for a retail shop with 120/208-volt, 3-phase, 4-wire service. Given: Sign recept. = 1,200 VA, lighting = 1,925 VA, recept. load = 15,000 VA, show window = 8,000 VA, multi-outlet assembly = 750 VA, motor loads = 6,500 VA, 25% of the largest motor = 1,625 VA.