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  5. ASVAB Section 4: Automotive and Shop Information

Free ASVAB Section 4: Automotive and Shop Information Exam Braindumps (page: 24)

Page 23 of 52
PDF with 206 Questions

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.



To fuse metals together, gas welding uses _______________.

  1. oxygen and acetylene to produce a flame.
  2. oxygen and fluorine to produce a flame.
  3. nitrogen and acetylene to produce a chemical reaction.
  4. flux and acetylene to create an arc.

Answer(s): A

Explanation:

Gas welding uses an oxygen and acetylene mixture in a welding torch that produces a flame hot enough to melt and fuse metals.



Tin snips are a type of ________________.

  1. gas welding aid
  2. shear
  3. metal roof measuring tool
  4. nipper

Answer(s): B

Explanation:

The cutting blades of tin snips cut metal with a shearing action as they slide past each other. The cutting blades of nippers come together and don't slide past each other. Tin snips have nothing to do with either welding or measuring.






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