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Free Test Prep ASVAB Test Exam Braindumps (page: 88)

Page 88 of 474
PDF with 1893 Questions

The brushes in an alternator ride on __________.

  1. the commutator
  2. the stator
  3. slip rings
  4. the heat sink

Answer(s): C

Explanation:

Two slip rings are mounted on the rotor shaft. Two brushes ride on the slip rings and deliver electrical energy to the rotor windings.



When all other lights show normal illumination but one headlight is dim, it is a good sign that the __________.

  1. battery is weak.
  2. headlight switch is defective.
  3. headlight unit needs adjustment.
  4. headlight has a poor ground connection.

Answer(s): D

Explanation:

A loose or corroded headlight ground connection will cause a dim light. If the headlight switch is faulty, all lights will be affected, not just the headlight.



If air gets into the hydraulic brake system, __________.

  1. brake application will be hard.
  2. it will have no effect.
  3. brake pedal action will be spongy.
  4. the brake pedal will stick.

Answer(s): C

Explanation:

Air is compressible and will cause a spongy or soft brake pedal action.



The proportioning valve in a hydraulic brake system __________.

  1. reduces pressure to the front brakes.
  2. controls the brake warning switch.
  3. is used only on drum-type brake systems.
  4. reduces pressure to the rear brakes.

Answer(s): D

Explanation:

A proportioning valve is commonly used on a vehicle equipped with front disc and rear drum-type brakes. The valve reduces hydraulic pressure to the rear drum brakes to prevent rear wheel lockup and skidding during heavy brake pedal application.



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