ELECTRICAL-LEVEL 3, CHAPTER 1 EXAM FULLY SOLVED #3
What is the total load, in VA, for two small appliance branch circuits in a single-family
dwelling? - correct answer 3,000VA
What is the maximum number of general-purpose noncontinuous duty duplex
receptacles that can be connected to a 20A, 120V circuit in a commercial building?
What is the NEC® required load rating for each receptacle? - correct answer 13
receptacles; 180VA
What is the demand load, in amps, for a single circuit supplying one wall-mounted oven
rated 11.75kw, 1Ø, 240V, and a countertop cooking unit rated 9.6kw, 1Ø, 240V? -
correct answer 48.33A
What is the demand load, in amps, for one household electric range with a nameplate
rating of 16.75kw, 1Ø, 240V? - correct answer 41.67A
What is the minimum conductor ampacity for four 1,000W, 208V, 1Ø electric baseboard
heaters? - correct answer 24.04A
Load calculations for circuits supplying lighting units with ballasts are based upon
_____. - correct answer the ampere ratings of the ballasts
What is the calculated load, in amps, for a 120V circuit supplying four 150W recessed
incandescent fixtures and six recessed fluorescent fixtures operating continuously?
(Each fluorescent ballast is rated at 0.65A.) - correct answer 11.125A
The load for 6 of multi-outlet assembly used simultaneously is _____. - correct answer
1,080VA
The voltage drop for a 480V, 3Ø circuit with a load of 26.5A, using No. 8 stranded
copper conductors at a circuit length of 145 - correct answer 5.18V
The voltage drop for a 208V, 1Ø circuit with a load of 26.5A, using No. 8 stranded
copper conductors at a circuit length of 145 is _____. - correct answer 5.98V
What is the current-carrying ampacity for each of 10 No. 10 THHN copper conductors
installed in a single conduit? - correct answer 20A
What is the capacity, in amperes, for a 20A circuit breaker supplying a continuous load?
- correct answer 16A
The general lighting load (expressed as a unit load per square foot) for a warehouse is
_____. - correct answer 1/4VA/sq ft
The general lighting load for a store is _____. - correct answer 3VA/sq ft
