DSL-206 Electrical 2 Final Exam

Alternators are more efficient when charging at higher speeds.

• 
  True

• 
  False

Old batteries with high resistance require the alternator to work _____ to charge them.

• more efficiently

• less

• harder

• less efficiently

When investigating electrical fires often caused by grounded alternator cables you must examine _____

• The burned alternator

• The severely burned wiring

• The broken belts

• 
  Battery Cables

Alternators have always been used on commercial vehicles.

• True

• 
  False

Alternators can produce power at engine idle speeds; generators cannot.

• True

• False

Output polarity from generators _____ depending on the _____ of rotation.

• 
  increases / speed

• decreases / direction

• is limited / shaft

• changes / direction

Oil cooled alternators drain oil from internal parts back into the _____

• Crankcase

• Oil cooler

• Oil filter

• Radiator

Exposure of crankcase oil vapors to alternator conductors carrying high amperage current, it has the potential to create _____ if an alternator is defective

• Less voltage

• Poor quality voltage

• Small engine explosion

• sparks

Voltage is induced in each coil, producing current flow from the rotation of a _____

• Stator

• Magnet

• Copper windings

• alternator shaft

Electrons pushed by the north magnetic pole create a conductor with a negative electrical polarity.

• True

• False