Question 1

When are subpanels used in residential wiring?

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Question 2

If the total computed load of a residence is 45,840 volt-amperes, the computed amperage of the residence is ____________________ amperes.

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Question 3

How are the electric heating and the air conditioning loads computed when calculating the total electrical load for a residential service?

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Question 4

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?

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Question 5

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?

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Question 6

When is bathroom lighting permitted to be connected to the 20-ampere-rated bathroom branch circuit?

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Question 7

Section 210.4 covers multiwire branch circuits and states that each multiwire branch circuit must have a way to simultaneously disconnect both ungrounded "hot" conductors at the point where the circuit originates.What does this mean as far as the type of circuit breaker that would have to be used?

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Question 8

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.

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Question 9

A house will have a countertop cook unit rated at 5 kW and a built-in oven rated at 7 kW.Both will be connected to the same branch circuit and be located in the same room.What is the load used to calculate the branch circuit rating?

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