Brakes And Braking Systems

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Service Quizzes & Trivia

An effective braking system and driver ability behind the wheel are most important to ensure swift and safe braking. Once has to ensure that their breaks are working before they hit the road. Take this quiz on breaks and breaking system and see how well you know about them as a whole.


Questions and Answers
  • 1. 
    Once all of the lug nuts have been torqued, go around them again, this time in a _______________ to ensure that you did not miss any in the previous pattern.
    • A. 

      Star pattern

    • B. 

      Circular pattern

    • C. 

      Alternating pattern

    • D. 

      None of the above

  • 2. 
    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

  • 3. 
    When inspecting wheel studs for damage, a technician should look for which of the following?
    • A. 

      Necked-down or thinned-out sections

    • B. 

      Cross-threading

    • C. 

      Seizing of the lug nut on the stud

    • D. 

      All of the above

  • 4. 
    Which of the following is a typical disc rotor?
    • A. 

      Hub-style

    • B. 

      Hubless-style

    • C. 

      Both A and B

    • D. 

      None of the above

  • 5. 
    Removing the rotor is usually required when the rotor:
    • A. 

      Is under the specified minimum thickness.

    • B. 

      Would be under the minimum thickness after machining.

    • C. 

      Both A and B

    • D. 

      None of the above

  • 6. 
    True or False. Disc rotors and drums can be refinished while on the vehicle or off the vehicle
    • A. 

      True

    • B. 

      False

  • 7. 
    True or False. Rotors that are too thin cannot handle as much heat and will experience brake fade.
    • A. 

      True

    • B. 

      False

  • 8. 
    Excessive brake disc rotor thickness variation will cause:
    • A. 

      Steering wheel shimmy.

    • B. 

      A brake surging feeling.

    • C. 

      Both A and B

    • D. 

      None of the above

  • 9. 
    Which of the following is a type of disc brake pad wear indicator?
    • A. 

      Scratcher type

    • B. 

      Sensor type

    • C. 

      Both A and B

    • D. 

      None of the above

  • 10. 
    True or False. Retracting the caliper piston on an integrated parking brake system is different than on a standard caliper.
    • A. 

      True

    • B. 

      False

  • 11. 
    Which of the following can cause brake pedal pulsation?
    • A. 

      Warped rotors

    • B. 

      Anti-lock braking system operation

    • C. 

      Both A and B

    • D. 

      None of the above

  • 12. 
    True or False. Pinching off the flexible brake hoses with vice grip pliers is a recommended method of closing rubber brake lines.
    • A. 

      True

    • B. 

      False

  • 13. 
    If the ________________ anti-lock braking system warning lamp illuminates, it typically means the vehicle's power train control module has observed a fault in the anti-lock brake system and will need to be checked for diagnostic trouble codes.
    • A. 

      Red

    • B. 

      Blue

    • C. 

      Yellow

    • D. 

      None of the above

  • 14. 
    Disc brake rotors with holes or slots machined into their surface can help:
    • A. 

      Dissipate heat more quickly.

    • B. 

      Remove water more quickly

    • C. 

      Both A and B

    • D. 

      None of the above

  • 15. 
    In a disc brake system, the dust shields help control which of the following?
    • A. 

      Dust

    • B. 

      Water

    • C. 

      Road debris

    • D. 

      All of the above

  • 16. 
    Tech A says that when the brake pedal is depressed, a push rod creates the hydraulic pressure in the disc brake system. Tech B says that when the brake pedal is depressed, a push rod transfers the force through a brake booster to a hydraulic master cylinder. Who is correct? 
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 17. 
    All of the following are disadvantages of disc brake systems, EXCEPT:
    • A. 

      Water dissipation.

    • B. 

      Rotor warpage.

    • C. 

      Squeals.

    • D. 

      Squeaks.

  • 18. 
    Tech A says that fixed calipers are rigidly bolted in place and cannot move or slide. Tech B says that the sliding or floating caliper has brake pads located on each side of the rotor, but all the pistons are on only one side, usually the inside of the rotor. 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 types of disc brake calipers, EXCEPT:
    • A. 

      Rotating caliper.

    • B. 

      Fixed caliper

    • C. 

      Floating caliper.

    • D. 

      Sliding caliper.

  • 20. 
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 21. 
    Tech A says that manufacturers have dealt with caliper brake piston corrosion by making pistons out of a phenolic resin. Tech B says that even though the phenolic pistons themselves do not corrode, the cast iron bore of the caliper does corrode and rust, and can therefore cause a phenolic piston to seize in the bore. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 22. 
    Which of the following is/are LEAST likely to be used to reduce disc brake squeal?
    • A. 

      Shims

    • B. 

      Spacers

    • C. 

      Axle grease

    • D. 

      Bendable tangs

  • 23. 
    Tech A says that burnishing the new brake pads results in longer brake pad life. Tech B says that burnishing the new brake pads results in quiet brake life. 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 a wheel stud that shows signs of cross-threaded lug nuts should be rethreaded with a die and put back in service. Tech B says that a wheel stud that shows signs of cross-threaded lug nuts should be replaced. 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 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

  • 26. 
    _____________________ do just what their name suggests; they hold the brake shoes against the backing plate.
    • A. 

      Specialty springs

    • B. 

      Return springs

    • C. 

      Hold-down springs

    • D. 

      None of the above

  • 27. 
    __________________ are used to return links and levers on the parking brake system or the self-adjuster mechanism.
    • A. 

      Specialty springs

    • B. 

      Return springs

    • C. 

      Hold-down springs

    • D. 

      None of the above

  • 28. 
    Which type of brake lining is typically used on light-duty vehicles?
    • A. 

      Bonded

    • B. 

      Rivets

    • C. 

      Both A and B

    • D. 

      None of the above

  • 29. 
    Which of the following can be found on a typical drum brake shoe?
    • A. 

      Holes

    • B. 

      Slots

    • C. 

      Tabs for springs

    • D. 

      All of the above

  • 30. 
    The ___________________ gets its name from using the servo action in both the forward and the reverse direction.
    • A. 

      Twin leading shoe drum brake system

    • B. 

      Leading/trailing shoe drum brake system

    • C. 

      Duo-servo drum brake system

    • D. 

      None of the above

  • 31. 
    True or False. The composition of the lining material affects brake operation. Materials that provide good braking with low pedal pressures tend to lose efficiency when they get hot.
    • A. 

      True

    • B. 

      False

  • 32. 
    ___________________ are installed so the direction they are applied is the same as the forward rotation of the drum.
    • A. 

      Trailing shoes

    • B. 

      Leading shoes

    • C. 

      Stationary shoes

    • D. 

      None of the above

  • 33. 
    Tech A says that it is a good practice to research any technical service bulletins for any brake system complaint. Tech B says that it is common practice to test-drive a vehicle even if the brake pedal goes to the floor. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 34. 
    Tech A says that when removing a hubless-style drum, you should first make matching marks on the drum and hub for reinstallation in the correct position. Tech B says that a center punch can be used to mark the position of the drum to hub. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 35. 
    Tech A says that if a hubless-style drum has screws or speed nuts holding the drum to the hub, you should remove them following the specified procedure. You cannot discard the speed nuts or the screws. Tech B says that if a hubless-style drum has screws or speed nuts holding the drum to the hub, you should remove them following the specified procedure. The speed nuts can be discarded and are not needed upon reassembly. The screws will be reused. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 36. 
    Tech A says that the anti-chatter band used for turning brake drums is not necessary, and not installing it on the brake drum will not affect the results. Tech B says that you should always install the anti-chatter band to reduce vibration and get the correct finish on the brake drum. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 37. 
    Tech A says that to reassemble a duo-servo brake, the backing plate pads should be lubricated. Tech B says that to reassemble a duo-servo brake, the star wheel assembly should be lubricated on the floating end. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 38. 
    All of the following components are part of a parking brake system in a drum brake, EXCEPT:
    • A. 

      Wheel cylinder.

    • B. 

      Primary shoe.

    • C. 

      Secondary shoe.

    • D. 

      Brake strut rod.

  • 39. 
    Which of the following is a recommended tool for removing brake lines from a wheel cylinder?
    • A. 

      Flare nut wrench

    • B. 

      Line wrench

    • C. 

      Both A and B

    • D. 

      None of the above

  • 40. 
    Tech A says that many wheels use a tapered hole that matches the tapered end of the lug nut and centers the wheel on the wheel flange. Tech B says that manufacturers usually suggest tightening wheel lugs in a circular pattern. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 41. 
    Tech A says that you should always start lug nuts on the wheel stud by hand. Tech B says that on some vehicles you are required to install the hubcap before installing the lug nuts. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 42. 
    Tech A says that during a brake inspection, it is good practice to carefully peel back the dust boot from a wheel cylinder and see if there is any brake fluid behind the dust boot. A little brake fluid is normal. Tech B says that during a brake inspection, it is good practice to carefully peel back the dust boot from a wheel cylinder and see if there is any brake fluid behind the dust boot. If there is, the wheel cylinder is starting to leak and should be replaced. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 43. 
    Tech A says that servicing the wheel bearings is a common part of a brake job if the vehicle has serviceable wheel bearings. Tech B says that if the vehicle uses non-serviceable bearings, the bearings should be checked during a brake job and replaced if they are worn out. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 44. 
    Which type of drum is typically used on common passenger vehicles?
    • A. 

      Hub-style drum

    • B. 

      Hubless-style drum

    • C. 

      Both A and B

    • D. 

      None of the above

  • 45. 
    Wheel cylinders typically contain which of the following?
    • A. 

      One or two pistons

    • B. 

      Spring and expander set

    • C. 

      Both A and B

    • D. 

      None of the above

  • 46. 
    The brake switch sends an electronic signal to which of the following?
    • A. 

      Brake lights

    • B. 

      Electronic brake control module

    • C. 

      Both A and B

    • D. 

      None of the above

  • 47. 
    Which of the following typically reports the vehicle's speed to the electronic brake control module?
    • A. 

      Wheel speed sensor

    • B. 

      Vehicle speed sensor

    • C. 

      Both A and B

    • D. 

      None of the above

  • 48. 
    True or False. Some anti-lock braking systems require a scan tool that connects to the electronic brake control module or power train control module to read the fault codes.
    • A. 

      True

    • B. 

      False

  • 49. 
    Which of the following is a typical sensor used by the electronic stability control system?
    • A. 

      Yaw sensor

    • B. 

      Steering angle sensor

    • C. 

      Roll-rate sensor

    • D. 

      All of the above

  • 50. 
    True or False. Some traction control systems can be temporarily deactivated by a traction control system function switch located on the dash or center console.
    • A. 

      True

    • B. 

      False

  • 51. 
    Which of the following is used to diagnose an anti-lock braking system fault?
    • A. 

      DVOM

    • B. 

      Oscilloscope

    • C. 

      Both A and B

    • D. 

      None of the above

  • 52. 
    Wheel speed sensors should be checked for which of the following with a DVOM?
    • A. 

      Open

    • B. 

      Ground

    • C. 

      High resistance

    • D. 

      All of the above

  • 53. 
    The tone wheel used on an anti-lock braking system's wheel speed sensors should be checked for which of the following?
    • A. 

      Broken teeth

    • B. 

      Damaged teeth

    • C. 

      Missing teeth

    • D. 

      All of the above

  • 54. 
    True or False. On a vehicle with an electronic brake control module, if the yellow warning lamp is not illuminated and the brakes are not functioning properly, suspect a problem that is not monitored by the electronic brake control module.
    • A. 

      True

    • B. 

      False

  • 55. 
    Which of the following modules executes the commands of the anti-lock braking system control module?
    • A. 

      Power train control module

    • B. 

      Transmission control module

    • C. 

      Hydraulic control module

    • D. 

      None of the above

  • 56. 
    Typical hydraulic control units for electronic brake control systems can have how many channels?
    • A. 

      Two

    • B. 

      Three

    • C. 

      Four

    • D. 

      All of the above

  • 57. 
    If there is a fault with the hydraulic control unit, typically the unit is which of the following?
    • A. 

      Serviceable in the field

    • B. 

      Not serviceable in the field

    • C. 

      Both A and B

    • D. 

      None of the above

  • 58. 
    True or False. Wheel speed sensors send electric signals to the electronic brake control module to determine speed and rate of deceleration of each wheel.
    • A. 

      True

    • B. 

      False

  • 59. 
    True or False. Wheel sensor assemblies are comprised of a toothed tone wheel and a pick-up assembly, separated by a metal plate.
    • A. 

      True

    • B. 

      False

  • 60. 
    Tech A says that all traction control systems apply the brakes as a first step and reduce engine power. Tech B says that some traction control systems do not apply the brakes as a first step but reduce engine power. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 61. 
    Tech A says that wheel speed senor operation can be tested with a DVOM. Tech B says that wheel speed senor operation can be checked with an oscilloscope. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 62. 
    Tech A says that if the yellow warning lamp is illuminated indicating a fault in the electronic brake control system, you should retrieve the diagnostic trouble codes and follow the procedure listed in the service information. Tech B says that if the yellow warning lamp is not illuminated and the brakes are not functioning properly on a vehicle with an electronic brake control system, you should suspect a problem that is not monitored by the electronic brake control module. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 63. 
    Which of the following is MOST likely to be in an electronic brake control module?
    • A. 

      Electronic circuitry

    • B. 

      Computer memory

    • C. 

      Output drivers

    • D. 

      All of the above

  • 64. 
    Which of the following is LEAST likely to be an input to an electronic brake control module?
    • A. 

      Crank sensor

    • B. 

      Ignition switch

    • C. 

      Battery

    • D. 

      All of the above

  • 65. 
    Tech A says that bleeding an electronic brake control system is just like bleeding a non–electronic brake control system. Tech B says that if air is allowed into the electronic brake control system, it can become trapped in the hydraulic control unit, requiring a scan tool to operate the solenoid valves to help bleed the air from the electronic brake control system. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 66. 
    Which brake fluid is LEAST likely to be used in an electronic brake control system?
    • A. 

      DOT 4

    • B. 

      DOT 5

    • C. 

      Both A and B

    • D. 

      None of the above

  • 67. 
    Tech A says that some anti-lock braking systems do away with the mechanical proportioning valve. Tech B says that the electronic brake control module performs an automatic self-check and warning lamp bulb check on the anti-lock braking system every time the key is turned to the “run” position. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 68. 
    All of the following are typical methods of reducing power in the vehicle when the electronic brake control module requests reduced power, EXCEPT:
    • A. 

      Reducing the throttle plate opening.

    • B. 

      Shutting down one or more injectors.

    • C. 

      Reducing the engine timing.

    • D. 

      Selecting a lower gear in the transmission.

  • 69. 
    Tech A says that a typical wheel speed sensor can be faulty due to a sensor resistance problem. Tech B says that a typical wheel speed sensor could be faulty due to no voltage supply. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 70. 
    Tech A says that in some cases, the electronic brake control module can be programmed with a new tire size to restore proper electronic brake control performance. Tech B says that there could be an electronic brake control module available for installation that matches a new tire size. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 71. 
    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

  • 72. 
    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

  • 73. 
    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

  • 74. 
    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

  • 75. 
    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

  • 76. 
    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

  • 77. 
    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

  • 78. 
    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

  • 79. 
    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

  • 80. 
    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

  • 81. 
    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

  • 82. 
    ___________________ 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

  • 83. 
    Brake hoses should never be?
    • A. 

      Pinched

    • B. 

      Kinked

    • C. 

      Bent tighter than a specific radius

    • D. 

      All of the above

  • 84. 
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Tech A nor B

  • 85. 
    True or False. Many brake hoses use banjo fittings to connect the hose to the wheel unit.
    • A. 

      True

    • B. 

      False

  • 86. 
    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

  • 87. 
    Banjo-type fittings typically include?
    • A. 

      Banjo fitting

    • B. 

      Banjo bolt

    • C. 

      Two copper or aluminum washers

    • D. 

      All of the above

  • 88. 
    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

  • 89. 
    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.

  • 90. 
    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

  • 91. 
    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

  • 92. 
    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

  • 93. 
    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

  • 94. 
    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

  • 95. 
    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

  • 96. 
    Which of the following is MOST likely to be part of the hydraulic brake system?
    • A. 

      Brake hoses

    • B. 

      Wheel cylinder

    • C. 

      Disc brake caliper

    • D. 

      All of the above

  • 97. 
    Tech A says that force is transmitted hydraulically through the brake fluid. Tech B says that by using cylinders of different sizes, forces can be increased or reduced, allowing designers to obtain the desired braking force for each wheel. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Techs A and B

    • D. 

      Neither Techs A and B

  • 98. 
    Which of the following frictional brake systems is used on vehicles today?
    • A. 

      Drum brakes

    • B. 

      Disc brakes

    • C. 

      Air brakes

    • D. 

      All of the above

  • 99. 
    Two students are discussing vehicle lift kits. Student A says that lift kits have no effect on braking or vehicle handling. Student B says that lift kits only affect handling, not braking. Who is correct?
    • A. 

      Student A

    • B. 

      Student B

    • C. 

      Both Students A and B

    • D. 

      Neither Student A nor B

  • 100. 
    The amount of friction between two moving faces in contact with each other is expressed as a ratio and is called:
    • A. 

      Friction.

    • B. 

      The coefficient of friction.

    • C. 

      The coefficient of heat.

    • D. 

      None of the above