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

The minimum service entrance disconnecting means rating for a single-family home permitted by the NEC is __________ amperes.

When doing service entrance calculations, 1 volt-ampere equals __________.

An individual branch circuit supplies only one piece of electrical equipment such as an electric range or a dishwasher.

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?

The NEC defines a branch circuit as the circuit conductors between the service equipment and the power or lighting outlets.

Which of the following areas is included when computing the general lighting load of a house?

The NEC states that each two-wire small-appliance circuit shall be computed at ____________________ volt-amperes.

A(n) __________ is the circuit conductors between the final overcurrent device and the outlets.

If an electric clothes dryer has a nameplate rating of 4500 watts, ____________________ watts will be used in the standard method for service calculation.

When are subpanels used in residential wiring?

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

The rating of a panelboard is based on the ampacity of the __________.

Section 230.79(C) requires that for a single-family dwelling, the service disconnecting means must have a rating of not less than 100 amperes.

The temperature of the air that surrounds an object on all sides is called ________ temperature.

The circuit conductors between the service equipment and the final branch circuit overcurrent protection device is a(n) __________.

A household electric range has a rating of 11 kW.When computing the service load using the standard calculation, a minimum of ____________________ watts will be used.

Another way to calculate the minimum number of general lighting circuits required in a dwelling unit is to divide the total habitable square foot living area by ____________ square feet for 15-ampere branch circuits and ______________ square feet for 20-ampere branch circuits.

The current in amperes that a conductor can carry continuously under certain conditions of use without exceeding its temperature rating is called __________.

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?

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