Exam 14: Branch-Circuit Installation

Where should carbon monoxide (CO) alarms be mounted?

A(n) __________-colored switch cover is used to identify an oil burner safety switch.

A receptacle for a gas-fired range is permitted to be connected to a small appliance circuit in a kitchen.

Electric ranges installed in houses are typically wired for __________-volt operation.

The NEC permits low-voltage Class 2 doorbell cable to be run next to 120- or 240-volt branch circuits wired with nonmetallic sheathed cable.

The chime transformer is used to transform the 120-volt residential circuit voltage down to the voltage that a chime system will operate on, usually ____________________ volts.

Explain why some areas of the country have a high number of homes heated by electric heat, while in other parts of the country most homes are heated by oil or gas.

The NEC requires a laundry circuit to be rated at ____________________ amperes.

On an individual branch circuit where no other items are served by the circuit, an air conditioner load cannot exceed __________ of the branch-circuit ampacity.

HACR is an acronym found on some circuit breakers and stands for "heating, air conditioning, and ventilation."

When installing a receptacle for a cord-and-plug connected appliance, the receptacle must be located no more than __________ feet from the appliance.

If an electric clothes dryer has a rating of 6 kilowatts at 120/240 volts, it will draw ____________________ amperes.

In an electric motor circuit, the size of the circuit breaker and the circuit conductors is determined by the __________ of the motor.

If an electric water heater is connected to water piping with connections that are designed so that the water heater can be quickly and easily removed, a flexible cord-and-plug connection is allowed.

Which table in the NEC is used to determine the maximum rating of the motor short circuit and ground-fault protection device (fuse or circuit breaker)?

Who decides whether 15- or 20-ampere rated general lighting circuits will be installed in a residential electrical system?

The NEC requires that small appliance branch circuits be protected with ____________________-ampere overcurrent protection devices.

Electric water heaters must be wired with a three-wire cable because the white conductor in a two-wire cable is not permitted to be used as an ungrounded conductor in this type of installation.

A receptacle located under a kitchen sink for a cord-and-plug-connected garbage disposal must be GFCI protected.

The NEC requires at least one 15- or 20-ampere, 125-volt receptacle in a bathroom and it must be located no more than __________ inches from the outside edge of the basin.