Auto Technology Chapters 33 & 34

Technician A says the diode trio rectifies AC current from the stator to DC current that is applied to the field windings. Technician B says the diode trio, when battery voltage is high, will light the indicator lamp. Who is correct?

• A only

• B only

• Both A and B

• Neither a nor B

Technician A says the stator can be checked for shorts and opens using a voltmeter. Technician B says the rotor cannot be tested and should be replaced whenever rebuilding an alternator. Who is correct?

• A only

• B only

• Both A and B

• Neither A nor B

Technician A says wye connection stators are used for higher output. Technician B says the stator produces three-phase AC voltage. Who is correct?

• A only

• B only

• Both A and B

• Neither A nor B

Technician A says says an open diode will have high resistance in both directions. Technician B says a shorted diode will have low resistance in both directions. Who is correct?

• A only

• B only

• Both A and B

• Neither A nor B

The charge, battery, or alternator indicator lamp remains on after the ignition switch is turned off. Technician A says the diodes are bad. Technician B says the stator is shorted. Who is correct?

• A only

• B only

• Both A and B

• Neither A nor B

Technician A says the rectifier assembly converts the three-phase AC voltage into direct current. Technician B says the rectifier assembly uses four diodes to convert AC voltage into DC. Who is correct?

• A only

• B only

• Both A and B

• Neither A nor B

If a technician connects a voltmeter from the output terminal of the alternator to the positive side of the battery, with the alternator charging, he/she is testing for _____.

• output voltage

• cranking voltage

• voltage drop in the output circuit

• voltage drop in the ground circuit

The component of the alternator that consists of a coil of wire wound around an iron core with a pole piece attached to the end of the shaft is called the _____.

• rotor

• rectifier

• stator

• regulator

In an alternator, the output voltage is induced by the _____.

• slip rings

• brushes

• stator

• rotor

Technician A says if a constant 11 volts is being produced by the alternator, the system is alright. Technician B says if a constant 14 volts is being produced by the alternator, the system is alright. Who is correct?

• A only

• B only

• Both A and B

• Neither A nor B