Exam 19: Charging Systems

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

The ____________________ is the stationary member of the AC generator.

Describe the three types of charging stations for EVs.

Which of the following precautions should be followed whenever working on or testing a charging system?

Rectification refers to changing alternating current to direct current.

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

PCM-controlled AC generators are being discussed. Technician A says the battery current sensor is located inside the AC generator. Technician B says the battery current sensor is a three-wire hall effect type sensor that connects to the PCM. Who is correct?

A zener diode blocks the current when the polarity is reversed when the voltage is low. When the voltage rises above a critical level, the current can flow through it in a reverse direction.

How can an oscilloscope be used to check AC generator output?

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

A voltage regulator controls the voltage output of an AC generator by controlling the current through the ____________________.

A rotating magnetic field inside a set of stationary conducting wires is a simple description of a(n)______.

The output of an AC generator can be as high as 250 volts if it is not controlled.

A technician connects the red lead of a voltmeter to the B+ [output] terminal of an AC generator and the black lead to the battery positive terminal. He starts the engine and turns on all the lights and electrical accessories. What is the technician measuring?

What is the purpose of a diode trio?

Integrated voltage regulators ______.

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

Some AC generators have dual fans to move air across the components for cooling.

Technician A says a DC generator is much different in construction to an electric motor. Technician B says DC generators have almost unlimited output, especially at low speeds. Who is correct?

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?