Principles Of Braking Hydraulics- Post

30 Questions

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Principles Of Management Quizzes & Trivia

Chapter 31


Questions and Answers
  • 1. 
    The principle behind hydraulic brakes is _________________, which states that pressure applied to a fluid in one part of a closed system will be transmitted without loss to all other areas of the system.
    • A. 

      Kirchhoff's law

    • B. 

      Newton's law

    • C. 

      Pascal's law

    • D. 

      None of the above

  • 2. 
    A substantial leak in the _____________ will prevent enough pressure from building to exert the necessary braking force
    • A. 

      Vacuum booster

    • B. 

      Power steering

    • C. 

      Engine oil

    • D. 

      Hydraulic system

  • 3. 
    Which of the following variables is related to pressure and force in a hydraulic system? 
    • A. 

      Input force

    • B. 

      Working pressure

    • C. 

      Output force

    • D. 

      All the above

  • 4. 
    Which of the following is a main component of a typical hydraulic brake system?
    • A. 

      Brake pedal

    • B. 

      Brake fluid

    • C. 

      Master cylinder

    • D. 

      All of the above

  • 5. 
    Which of the following is a property of typical brake fluid used in automobile brake systems?
    • A. 

      High boiling point

    • B. 

      Low freezing point

    • C. 

      Hygroscopic

    • D. 

      All of the above

  • 6. 
    Brake fluid is graded by the Department of Transportation on which of the following? 
    • A. 

      Color

    • B. 

      PH value

    • C. 

      How much water it can hold

    • D. 

      All of the above

  • 7. 
    Determining if brake fluid should be flushed can be done using which of the following methods?
    • A. 

      Test strip

    • B. 

      DVOM-galvanic reaction test

    • C. 

      Time and mileage

    • D. 

      All of the above

  • 8. 
    A typical brake pedal inspection includes which of the following?
    • A. 

      Brake pedal height

    • B. 

      Brake pedal free play

    • C. 

      Brake pedal travel

    • D. 

      All the above

  • 9. 
    A(n) ____________________ (non-CAN-bus) circuit is a simple light bulb in series with as many as four switches that are connected in parallel with each other.
    • A. 

      Electronic brake warning lamp system

    • B. 

      Mechanical brake warning lamp system

    • C. 

      Both A and B

    • D. 

      None of the above

  • 10. 
    True or False. To ensure that a leak in one brake circuit will not affect the other circuit, master cylinder reservoirs have two separate chambers.
    • A. 

      True

    • B. 

      False

  • 11. 
    Most modern master cylinder reservoirs are equipped with a low brake fluid float switch that turns on the __________________ on the instrument panel and/or sets a notification on the driver information system.
    • A. 

      Amber brake warning light

    • B. 

      Yellow brake warning light

    • C. 

      Red brake warning light

    • D. 

      None of the above

  • 12. 
    ___________________ carry brake fluid from the master cylinder to the brake units.
    • A. 

      Double-walled steel lines only

    • B. 

      Rubber hoses only

    • C. 

      Doubled-walled steel lines and rubber hoses

    • D. 

      None of the above

  • 13. 
    Brake hoses should never be?
    • A. 

      Pinched

    • B. 

      Kinked

    • C. 

      Bent tighter than a specific radius

    • D. 

      All of the above

  • 14. 
    Tech A says that proportioning valves reduce brake pressure to the rear wheels and are pressure-sensitive or load-sensitive. Tech B says that load-sensitive proportioning valves adjust rear brake pressure according to the weight of the vehicle's load. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 15. 
    True or False. Many brake hoses use banjo fittings to connect the hose to the wheel unit.
    • A. 

      True

    • B. 

      False

  • 16. 
    Banjo-type fittings typically include?
    • A. 

      Banjo fitting

    • B. 

      Banjo bolt

    • C. 

      Two copper or aluminum washers

    • D. 

      All of the above

  • 17. 
    Tech A says that a cracked brake hose that is not leaking does not need to be replaced. Tech B says that a brake hose with a blister must be replaced. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 18. 
    Tech A says that if none of the brake lights illuminate when depressing the brake pedal, the problem could be the fuse or bulbs. Tech B says that if none of the brake lights illuminate when depressing the brake pedal, the problem could be the feed wire or ground. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 19. 
    All of the following are methods used to force air and contaminated fluid out of a brake system in a vehicle, EXCEPT:
    • A. 

      Vacuum bleeding.

    • B. 

      Pressure bleeding.

    • C. 

      Bench bleeding.

    • D. 

      Manual brake bleeding.

  • 20. 
    Which of the following can turn on the brake warning light?
    • A. 

      Parking brake being engaged

    • B. 

      Brake fluid level being low

    • C. 

      Pressure being unequal in the brake system

    • D. 

      All of the above

  • 21. 
    Tech A says that as moisture levels increase in brake fluid, the boiling point of the brake fluid decreases. Tech B says that field tests by the Society of Automotive Engineers have documented that the average 1-year-old car has approximately 2% moisture in the brake fluid. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 22. 
    Tech A says that using gasoline is an approved method of cleaning brake system components. Tech B says that using kerosene is an approved method of cleaning brake system components. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 23. 
    Tech A says that when replacing a brake master cylinder, it should be bled after placing the master cylinder into the vehicle's brake system. Tech B says that when replacing a master cylinder, it should be bench bled before the master cylinder is placed into the vehicle's brake system. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 24. 
    Tech A says that if there is too much travel in the parking brake lever, the cables should be shortened. Tech B says that if there is too much travel in the parking brake lever, the parking brake (drum or disc) clearance should be checked. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 25. 
    Tech A says that in a CAN-bus circuit the parking brake sensor and the low brake fluid sensors send signals over the CAN-bus network regarding their status. Tech B says that diagnosis involves using a scan tool capable of interrogating the system, a wiring diagram, and a DVOM to perform specific tests. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 26. 
    When installing wheels on a vehicle that a technician just finished servicing, the technician should use a(n) __________________________ to tighten each wheel lug nut.
    • A. 

      Impact gun

    • B. 

      Air ratchet

    • C. 

      Torque wrench

    • D. 

      None of the above

  • 27. 
    True or False. Rotors that are too thin cannot handle as much heat and will experience brake fade.
    • A. 

      True

    • B. 

      False

  • 28. 
    All of the following are types of disc brake calipers, EXCEPT:
    • A. 

      Rotating caliper.

    • B. 

      Fixed caliper

    • C. 

      Floating caliper.

    • D. 

      Sliding caliper.

  • 29. 
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 30. 
    Tech A says that the piston on a brake caliper that integrates the parking brake will need to be screwed back in on the threaded shaft to retract it into the bore. Tech B says that you need a special tool that mates to slots, grooves, or holes in the outer face of the caliper piston. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B