Exam 6: Determining Branch Circuit, Feeder Circuit, and Service Entrance Requirements

According to Section 310.15(B)(7) in the NEC, the minimum conductor size for a 300-ampere residential service entrance is _________ Cu or _________ Al.

In residential wiring, which of the following house areas does not have its power supplied by a small appliance circuit?

Which of the following is not permitted to be connected to a small appliance branch circuit?

A circuit that consists of two or more ungrounded conductors that have a voltage between them, and a grounded conductor that has equal voltage between it and each ungrounded conductor of the circuit is called a multiwire circuit.

A house will have a counter-mounted cooking unit with a nameplate rating of 4 kW and a wall-mounted oven with a nameplate rating of 6 kW.A separate individual branch circuit will be run to the counter-mounted cooking unit and to the wall-mounted oven.What is the branch circuit load for each of the appliances in amperes?

When cables or conductors are physically tied, wrapped, or taped together, they are considered to be ______________.

According to Table 310.15(B)(16) in the NEC, the ampacity for a 3 AWG copper conductor using the 75 degree Celsius column is ____________.

Which of the following loads does not require a grounded circuit conductor?

A 1900 square foot residence has a general lighting load of ____________________ volt-amperes.

A house will have an electric range that has a nameplate rating of 14 kW.What is the load used to calculate the branch circuit rating?

When doing a standard service entrance calculation and applying the demand factor to the total load of the general lighting load, the small appliance circuits, and the laundry circuit, the first ___________ volt-amperes are computed at 100%.

According to the NEC, the unit load used to calculate the minimum number of general lighting branch circuits in a dwelling is __________ volt-amperes per square foot.

According to Section 310.15(B)(7)(1), for one-family dwelling service entrance ratings of 100 through 400 amperes the service conductors can have a rating of _____ percent of the service rating.

When doing a standard service entrance calculation, if a residence has four fixed appliances, a demand factor of __________% is applied to the total load of these appliances.

If cables are bundled together for more than 24 inches and the total number of current-carrying conductors exceeds __________, the ampacity of the conductors must be derated.

According to Section 310.15(B)(7) in the NEC, the minimum conductor size for a 200-ampere residential service entrance is _________ Cu or _________ Al.

Kitchen lighting outlets are permitted to be connected to any of the small-appliance branch circuits that provide power for the kitchen receptacles.

Dividing the total computed load in volt-amperes by the residential service voltage of ____________________ volts will give the minimum ampacity that the service conductors must be rated for.

All of the following types of branch circuits are found in residential wiring except:

An area including a basin with one or more of the following: a toilet, a urinal, a tub, a shower, a bidet, or similar plumbing fixtures is called a bathroom according to the NEC.