431.1

When a calculation results in a fraction of an ampere of ___ or more, the NEC® permits "rounding up" to the next ampere.

0.50

Feeder and service-entrance conductors with demand loads determined by 220.82 are permitted to have the ___ load determined by 220.61.

neutral

A single-family dwelling unit has three ovens rated at 6, 8, and 3.5 kW; a cooktop rated at 6 kW, and a broiler rated at 3.5 kW. The minimum demand factor to be calculated for the ungrounded service entrance conductors is ___.

12.2 kW

Individual appliances that are continuously loaded shall have the branch-circuit rating sized no less than ___ percent of the appliance's marked ampere rating.

125

The minimum number of 120-volt, 15-amp lighting branch circuits required for a dwelling that has 70 x 30 ft. of livable space is ___.

4

Determine the minimum number of 15-amp, 120-volt, lighting circuits required for a 2600 ft2 dwelling.

5

Which of the following is not true? Select one: a. A demand factor from Table 220.55 could be applied to a household counter-mounted cooking unit of 1760 watts. b. Ten household clothes dryers have a demand factor of 50%. c. A demand factor from Table 220.55 could be applied to a 13/4 kW wall-mounted oven. d. Table 220.55 is permitted to be used for a branch circuit to a household range.

A demand factor from Table 220.55 could be applied to a 13/4 kW wall-mounted oven.

The connected load to which the demand factors of Table 220.84 apply include the ___ ratings of all appliances that are fastened in place, permanently connected, or located to be on a specific circuit.

nameplate

Under the optional method of calculation for a single-family dwelling, all "other load" beyond the initial 10 kVA is to be assessed at ___ percent.

40

If an apartment complex has a lighting load of 205.4 kVA, what is the demand factor of this lighting load in kVA? Each apartment contains an electric range. (The optional method is not to be used.)

65.3 kVA

The demand factor for six residential clothes dryers in a multifamily dwelling unit is ___.

75%

When sizing a feeder for the appliance loads in dwelling units, a demand factor of 75 percent of nameplate ratings for ___ or more appliances fastened in place on the same feeder can be made.

four

In a dwelling, the minimum feeder neutral for a 5 kVA clothes washer/dryer would be ___ kVA.

3.5

Which of the following is not true concerning the optional method for a dwelling unit? Select one: a. The optional method of calculation is permitted if the service-entrance conductors have an ampacity of 200 or greater. b. The neutral would be determined by section 220.61. c. A demand of 40% of the nameplate rating(s) of electric space heating of four or more separately controlled units can be applied. d. A demand of 100% of the heat pump.

The optional method of calculation is permitted if the service-entrance conductors have an ampacity of 200 or greater.