Exam 19: Charging Systems

What factors determine whether a faulty AC generator should be replaced or rebuilt?

Most electronic voltage regulators use a ____________________ diode that blocks current flow until a specific voltage is obtained.

Describe how to test a rotor for a short to ground.

Bypassing the regulator is known as ____________________ the generator.

Recommended engine rpm during a voltage output test is usually around ____________________ rpm.

A diode trio provides rectified current to the ______.

If the field of a 100 amp, pulse width modulated AC generator [PCM controlled] is fed a 30% duty cycle, how much current will be produced at the generator output terminal?

Before adjusting drive-belt tension, Technician A checks for proper pulley alignment. Technician B looks up the specified belt tension in the vehicle's service manual. Who is correct?

The current output in an AC generator must be limited by a resistor to prevent excess current from damaging the battery and electrical accessories.

A voltage drop over _____ volt(s) indicates high resistance in either the circuit or ground wiring of the charging system.

Hybrid vehicles are being discussed. Technician A says some hybrid vehicles use a motor/generator that is connected to the crankshaft by a drive belt. Technician B says the motor/generator on a hybrid vehicle is located at the flywheel. Who is correct?

A bad diode can cause an abnormal whirring noise in the AC generator.

"A one-way check valve for electric current" is a good description of a ____________________.

A PCM-controlled AC generator controls charging system voltage by shunting its excess output.

What is the purpose of the fail-safe circuit contained with many voltage regulators?