Exam 15: Basics of Electrical Systems

The unit for measuring electrical resistance is _____.

The voltage in a hybrid vehicle can range up to _____ volts.

Secondary wire is used to power _____.

Describe the formula for power (Watt's law).

If there is voltage in a circuit, there must be electrons flowing through the circuit.

In the formula E = I x R, the I represents_____.

Amperage stays constant in a circuit, but the voltage drops as it powers a load.

Describe the difference between alternating and direct current.

Technician A disconnects the battery ground cable prior to replacing a fusible link. Technician B uses a fusible link that is larger [lower gauge number] than the circuit it protects. Who is correct?

To complete the electrical path to the vehicle's battery, the vehicle's metal frame components are often part of the electrical circuit.

A circuit protection device such as a fuse, fuse link, or circuit breaker will open the circuit if resistance values become too great.

Electromotive force is usually called ____________________.

A parallel circuit can only have one load on each leg.

Why can wire sizes be smaller when higher system voltages are used?

A momentary contact switch is used to operate the _____.

The process of generating electricity by moving a wire through a magnetic field is called ____________________.

A _____ is an electromagnet with a movable core that converts electrical current into mechanical movement.

In the formula E = I x R, the R represents_____.

One watt is equal to one volt multiplied by one ampere.

A circuit that is complete and does not have anything to prevent the flow of electrical current through it has ____________________.