EES 101 Week 7

Turning alternators faster uses more energy (fuel) but does not supply a proportional increase in electrical energy output.

• True

• False

Tech A says: Alternators can be upgraded to produce more output. Tech B says: An alternator with greater output capacity and size can replace a smaller alternator on the same engine as long as it fits in the same place and the pulley size is the same. Who is correct?

• Tech A

• Tech B

• Both Tech A and B

• Neither Tech A nor B

What statement is true when discussing the difference between an alternator from a generator in an automotive application?

• Alternator produces DC voltage and then converts it to AC voltage. Generators only produce AC voltage.

• Alternators produce AC voltage then converts it to DC voltage. Generators only produce AC voltage.

• Generators only produce DC voltage. Alternators produce AC voltage then converts it to DC voltage.

• Generators produce AC voltage then converts it to DC voltage. Alternators only produce DC voltage.

Both Alternators and Generators are mechanically driven by the engine and produce electric current using principles of _____ _____

• Field Inductance

• Electro-Spooling

• Flux Capacitance

• Magnetic Induction

• Centrifugal Induction

The output of an alternator is mainly determined by:

• Size of the pulley

• Number of Diodes in the Rectifier Bridge

• The size and number of windings in the Stator

• The number of windings in the Rotor.

• Size of the Output B+ Post

Match the following

• Serpentine Pulley

• 
• V-Belt Pulley

• 
• Stator

• 
• Brush

• 
• Brushless

• 

In a 12 volt system: An alternator with 300 amps of output will have ___ diodes in the rectifier bridge.

• 6

• 12

• 24

• 25

• 3

Three types of voltage regulators: Type A, Type B, and ____ _____

Tech A says: Any type of alternator regulator can use external regulators. Tech B says: Only Type A Alternator regulators can be externally mounted. Who is correct?

• Tech A

• Tech B

• Both A and B

• Neither A or B

Alternators can be oil cooled.

• True

• False