Exam 19: Service Panel Trim-Out

All plug fuses are limited to circuits where the voltage between conductors does not exceed __________ volts.(General Rule)

Type S adapters are designed so that once inserted in a fuseholder, they cannot be ____________________.

Overcurrent protection devices must be readily accessible.

A circuit breaker used to switch fluorescent lighting must be listed and have __________ marked on it.

The NEC permits overcurrent protection devices to be located in bathrooms.

A device intended to provide protection from the effects of arc faults is called a(n) __________ circuit breaker.

The circuit breakers are attached to the bus bar by contacts in the breakers commonly called ____________________.

A single-pole circuit breaker has one stab contact and a two-pole circuit breaker has two stab contacts.

When terminating an ungrounded conductor to a circuit breaker, approximately __________ of insulation is stripped from the end of the conductor.

When working on an energized main breaker electrical panel, turning the main breaker "OFF" disconnects power from the ____________________ side of the panel.

Circuit breakers are always interchangeable with different manufacturer's panelboards.

Fuseholders for current-limiting fuses cannot permit the insertion of fuses that are not ______________________________.

All circuit breakers must be designed so that any fault must be cleared before the circuit breaker can be ____________________.

A two-pole circuit breaker is used to protect a 120-volt branch circuit.

A(n) __________ fuse uses different fuse bases for each size fuse and an adapter that matches each fuse size is required.

If an electrician chooses to use plug fuses in a new electrical installation, they must be ____________________-plug fuses.

A 240-volt electric water heater branch circuit or feeder circuit will require a __________ circuit breaker.

The color coding for a 15-ampere Type S plug fuse adapter is __________.

Describe how you can tell the difference between a "regular" circuit breaker and a GFCI or AFCI circuit breaker.

A 12 AWG branch circuit can be protected by a 15-ampere fuse or circuit breaker.