2017 Fleet Tech Challenge

100 Questions
2017 Fleet Tech Challenge
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Questions and Answers
  • 1. 
    Technician A says a higher than normal voltage drop could indicate high resistance. Technician B says high resistance causes an increase in current flow. Who is correct?
    • A. 

      Technician A

    • B. 

      Technician B

    • C. 

      Both Techs A and B

    • D. 

      Neither Technician A nor B

  • 2. 
    An excess of electrons will give the atom a/n:
    • A. 

      Positive charge

    • B. 

      Negative charge

    • C. 

      Atomic charge

    • D. 

      Neutral charge

  • 3. 
    Two technicians are discussing voltage. Technician A says that amperage is the amount of electrons flowing in a circuit. Technician B says that voltage is the amount of force in a circuit. Who is correct?
    • A. 

      Technician A

    • B. 

      Technician B

    • C. 

      Both Technicians A and B

    • D. 

      Neither Technician A nor B

  • 4. 
    Technician A says a parasitic draw is when the alternator is charging the battery. Technician B says when performing a parasitic draw test, you should wait until all of the modules have gone to sleep. Who is correct?
    • A. 

      Technician A

    • B. 

      Technician B

    • C. 

      Both Technicians A and B

    • D. 

      Neither Technician A nor B

  • 5. 
    When performing a battery open circuit voltage test, what voltage indicates a fully charged battery?
    • A. 

      12.0 volts

    • B. 

      12.4 volts

    • C. 

      12.6 volts

    • D. 

      13.5 volts

  • 6. 
    A voltage drop test is being performed on the output wire of the alternator, between the alternator output wire to the battery positive post. Technician A says that the voltage drop should be approximately 12.0 volts. Technician B says that during the voltage drop test, the engine should be at the specified rpm and the battery loaded down so the alternator puts out maximum current flow. Who is correct?
    • A. 

      Technician A

    • B. 

      Technician B

    • C. 

      Both Technician A and B

    • D. 

      Neither Technician A nor B

  • 7. 
    Two technicians are discussing a charging system output test. Technician A says that an amp reading substantially below specifications could be caused by open diodes. Technician B says it could be caused by a faulty regulator. Who is correct?
    • A. 

      Technician A

    • B. 

      Technician B

    • C. 

      Both Technicians A and B

    • D. 

      Neither Technician A nor B

  • 8. 
    Two technicians are discussing a vehicle's charging system running at 17.2 volts. Technician A says it is normal for newer vehicles to run a higher voltage like that. Technician B says a faulty voltage regulator could cause that condition. Who is correct?
    • A. 

      Technician A

    • B. 

      Technician B

    • C. 

      Both Technicians A and B

    • D. 

      Neither Technician A nor B

  • 9. 
    Two technicians are discussing a starter that clicks once when turning the key to the crank position. Technician A says that it could be caused by worn solenoid contacts. Technician B says it could be caused by an open ignition switch. Who is correct?
    • A. 

      Technician A

    • B. 

      Technician B

    • C. 

      Both Technicians A and B

    • D. 

      Neither Technician A nor B

  • 10. 
    Two technicians are discussing a higher than normal starter draw amperage reading. Technician A says that could be caused by excessive resistance on the starter ground circuit. Technician B says that could be caused by shorted field windings in the starter. Who is correct?
    • A. 

      Technician A

    • B. 

      Technician B

    • C. 

      Both Technician A and B

    • D. 

      Neither Technician A nor B

  • 11. 
    Disconnecting which of the following would allow the engine to crank but prevent it from starting?
    • A. 

      Neutral safety switch

    • B. 

      Battery ground cable

    • C. 

      Ignition switch

    • D. 

      Ignition system or fuel system

  • 12. 
    What is an example open circuit?
    • A. 

      A power wire that has melted to a power wire

    • B. 

      A break in the wire

    • C. 

      A power wire that has melted to a ground wore

    • D. 

      A switch that has current flowing through it

  • 13. 
    When measuring voltage with a voltmeter, place:
    • A. 

      The red lead in the "Amps" slot and the black lead in the "Neg" slot.

    • B. 

      The red lead in the "Common slot" and the black lead in teh "Volt/Ohms" slot.

    • C. 

      The red lead in the "Volt/Ohms" slot and the black lead in the "Common" slot.

    • D. 

      The red lead in the "Pos" slot and the black lead lead in the "Neg" slot.

  • 14. 
    You have a 4 ohm resister in series with a 12 battery. How many amps will flow through the resistor?
    • A. 

      1 amp

    • B. 

      2 amps

    • C. 

      3 amps

    • D. 

      4 amps

  • 15. 
    A circuit has 12 volts and a 0.5 ohm resistor. How many amps flow through the resistor?
    • A. 

      6

    • B. 

      60

    • C. 

      4.8

    • D. 

      24

  • 16. 
    Two technician are discussing automotive wire. Technician A says that 12 AWG wire carries more current than 8 AWG. Technician B says that as long as they are both made of copper, they will carry the same amount of current. Who is correct?
    • A. 

      Technician A only

    • B. 

      Technician B only

    • C. 

      Both Technician A & Technician B

    • D. 

      Neither Technician A nor Technician B

  • 17. 
    Two technicians are discussing relays. Technician A says that relays can fail because the relay winding is open. Technician B says relays can fail because the switch contacts can have high resistance. Who is correct?
    • A. 

      Technician A

    • B. 

      Technician B

    • C. 

      Both Technician A and B

    • D. 

      Neither Technician A nor B

  • 18. 
    Fuses prevent circuit damage by:
    • A. 

      Limiting voltage increases

    • B. 

      Reducing wiring length

    • C. 

      Decreasing circuit resistance

    • D. 

      Stopping excessive current flow

  • 19. 
    Tech A says that to read amperage, the meter must be hooked up in series in a circuit. Tech B says that to read amperage at a load, you should place one lead of the ammeter on the input side of the load and the other lead on the output side of the load. Who is correct?
    • A. 

      Technician A

    • B. 

      Technician B

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 20. 
    Technician A states that disc brake rotors can be reused as long as the surface is machined smooth. Technician B states that disc brake rotor thickness variation is measured with a micrometer. Who is correct?
    • A. 

      Technician A

    • B. 

      Technician B

    • C. 

      Both Technician A and Technician B

    • D. 

      Neither Technician A nor Technician B

  • 21. 
    Excessive disc brake rotor thickness variation will cause:
    • A. 

      A squishy brake pedal.

    • B. 

      The brake pads to wear on a slant.

    • C. 

      The caliper pistons to seize in their bores.

    • D. 

      Brake pedal pulsation.

  • 22. 
    Disc brake rotors can be out of specification in two ways: thickness variation and:
    • A. 

      Hardness

    • B. 

      Tire runout

    • C. 

      Lateral runout

    • D. 

      Specific gravity

  • 23. 
    Air in the brake lines will cause what type of problem?
    • A. 

      Vibration in the brake pedal during stops

    • B. 

      Spongy brake pedal

    • C. 

      Hard brake pedal

    • D. 

      Brake noise

  • 24. 
    To perform an internal leak test on a vacuum power booster, let the engine idle and apply the brake pedal with firm pressure. Without moving your foot, shut off the engine and observe the brake pedal for 1 minute. If the power booster is good, what should the brake pedal do?
    • A. 

      Slowly sink

    • B. 

      Pulsate rapidly

    • C. 

      Slowly rise

    • D. 

      Hold steady

  • 25. 
    All of the following are properties of DOT 5 brake fluid, EXCEPT:
    • A. 

      It is less harmful to paint than DOT 3 and DOT 4 fluids

    • B. 

      It is not suitable for vehicles equipped with an anti-lock braking system

    • C. 

      It absorbs water

    • D. 

      It is not hygroscopic

  • 26. 
    Technician A says that packing a wheel bearing assembly means smearing some grease around the outside of the bearing. Technician B says that a wheel bearing assembly can be packed with a bearing packer. Who is correct?
    • A. 

      Technician A

    • B. 

      Technician B

    • C. 

      Both Technician A and Technician B

    • D. 

      Neither Technician A nor Technician B

  • 27. 
    In many rear-wheel drive vehicles, the wheel bearings are lubricated with _____________ that also lubricates the differential assembly.
    • A. 

      Engine oil

    • B. 

      Automatic transmission fluid

    • C. 

      Gear oil

    • D. 

      Compressor lube

  • 28. 
    The amount of friction between two moving faces in contact with each other is expressed as a ratio and is called:
    • A. 

      The coefficient of friction

    • B. 

      Heat ratio

    • C. 

      The coefficient of heat

    • D. 

      Friction

  • 29. 
    All of the following is a part of the hydraulic brake system, EXCEPT:
    • A. 

      Brake hoses

    • B. 

      Disc brake caliper

    • C. 

      Wheel cylinder

    • D. 

      Parking brake assembly

  • 30. 
    The purpose of a drop center in a wheel is to allow for:
    • A. 

      Cooler looking wheels

    • B. 

      Better heat dissipation

    • C. 

      Tire mounting and dismounting

    • D. 

      Keeping the tire on the rim if there is a leak

  • 31. 
    Technician A says that all lug nuts must be torqued to specifications. Technician B says that lug nuts should be tightened in a random sequence. Who is correct?
    • A. 

      Technician A

    • B. 

      Technician B

    • C. 

      Both Technician A and Technician B

    • D. 

      Neither Technician A nor Technician B

  • 32. 
    Technician A says when checking a tire’s air pressure, always refer to the tire sidewall information, and inflate the tire to that pressure. Technician B says when checking air pressure, compare it to the specifications on the tire placard usually located on the driver’s door, door pillar, or glove compartment lid. Who is correct?
    • A. 

      Technician A

    • B. 

      Technician B

    • C. 

      Both Technician A and Technician B

    • D. 

      Neither Technician A nor Technician B

  • 33. 
    When attempting a repair on a damaged tire all of the following are true; EXCEPT:
    • A. 

      A complete inspection of the tire, removed from the wheel, is required.

    • B. 

      Tread punctures of greater than 1/4" or 6 mm cannot be repaired.

    • C. 

      Repairs cannot be made to fix sidewall damage.

    • D. 

      A tire plug by itself is an acceptable repair.

  • 34. 
    Tech A says that a static imbalance condition is centered within the width of the tire. Tech B says that a dynamic imbalance condition can be anywhere within the width of the tire. Who is correct?
    • A. 

      Technician A

    • B. 

      Technician B

    • C. 

      Both Technician A and B

    • D. 

      Neither Technician A nor B

  • 35. 
    All of the following statements about a tire pressure monitoring system are true, EXCEPT:
    • A. 

      It uses a warning light or message as a driver warning

    • B. 

      It is often referred to as a TPMS

    • C. 

      It can automatically stop a leak in a tire

    • D. 

      It can be diagnosed with an appropriate scan tool

  • 36. 
    A green valve stem cap on tires on recent model-year vehicles means that the tires are:
    • A. 

      Filled with carbon dioxide

    • B. 

      Filled with nitrogen

    • C. 

      Filled with hydrogen

    • D. 

      Filled with argon

  • 37. 
    The aspect ratio of a tire is:
    • A. 

      The width of the tire

    • B. 

      The ratio of the inflation pressures

    • C. 

      The rim diameter

    • D. 

      The ratio of its height to its width

  • 38. 
    Technician A says some tire pressure monitoring systems (TPMS) have a sensor mounted in each wheel rim. Technician B says some tire pressure monitoring systems use the wheel speed sensors in the ABS system to detect tires with low pressure. Who is correct?
    • A. 

      Technician A

    • B. 

      Technician B

    • C. 

      Both Technician A and Technician B

    • D. 

      Neither Technician A nor Technician B

  • 39. 
    Camber is the:
    • A. 

      Axis around which the wheel assembly swivels as it turns.

    • B. 

      Inward or outward (side to side) vertical tilt of the wheel.

    • C. 

      Axis between the upper and lower pivots on the control arms.

    • D. 

      Angle the steering arms make when projected toward the center of the rear axle.

  • 40. 
    A  pre-alignment inspection includes all of the following, EXCEPT:
    • A. 

      Removal of any heavy items from the trunk or truck bed

    • B. 

      Inspecting and adjusting the tire air pressure to specifications on the tire placard

    • C. 

      Inspecting and confirming correct tire size

    • D. 

      Removing the front wheels to prepare for adjustment

  • 41. 
    The components that follow the road contours, such as wheels, tires, axles, and outboard brake assemblies are considered:
    • A. 

      To be "driving weight"

    • B. 

      To be "dead wight"

    • C. 

      To be "unsprung weight"

    • D. 

      To be "sprung weight"

  • 42. 
    The _______________ connect(s) the wheels to the suspension and steering system.
    • A. 

      Inner tie-rods

    • B. 

      Idler arm

    • C. 

      Pitman arm

    • D. 

      Steering knuckle

  • 43. 
    All of the following about the flexible joints found in the steering linkage are true, EXCEPT:
    • A. 

      They are sometimes equipped with a grease fitting

    • B. 

      They can be disassembled, cleaned, and repacked with grease

    • C. 

      They are of ball-and-socket design

    • D. 

      They allow movement without looseness or play

  • 44. 
    When the piston moves from bottom dead center (BDC) to top dead center (TDC) or TDC to BDC, it is known as a:
    • A. 

      Cycle

    • B. 

      Revolutions

    • C. 

      Bore

    • D. 

      Stroke

  • 45. 
    Technician A says that in a four-stroke engine, it takes two strokes to complete a cycle. Technician B says that only one of the four strokes delivers power to the crankshaft. Who is correct?
    • A. 

      Technician A

    • B. 

      Technician B

    • C. 

      Both Technician A and Technician B

    • D. 

      Neither Technician A nor Technician B

  • 46. 
    The ratio of the crank gear to the camshaft gear(s) is:
    • A. 

      4:1

    • B. 

      2:1

    • C. 

      3:1

    • D. 

      1:1

  • 47. 
    Intake valves in the cylinder head are closed by pressure from the:
    • A. 

      Exhaust

    • B. 

      Intake manifold

    • C. 

      Valve springs

    • D. 

      Piston

  • 48. 
    What does the “W” in 5W30 engine oil stand for?
    • A. 

      Winter

    • B. 

      Weight

    • C. 

      Wear resistant

    • D. 

      Water resistant

  • 49. 
    Technician A says that when installing an oil filter, you should tighten it with a filter wrench to prevent it from falling off. Technician B says that oil filters should only be installed by hand. Who is correct?
    • A. 

      Technician A

    • B. 

      Technician B

    • C. 

      Both Technician A and Technician B

    • D. 

      Neither Technician A nor Technician B

  • 50. 
    When installing a new oil filter, it is a good idea to:
    • A. 

      Wipe a small amount of contact cement on the rubber gasket.

    • B. 

      Clean all oil from the mounting area and install the rubber gasket dry.

    • C. 

      Wipe a small amount of gasket sealer on the new rubber filter gasket.

    • D. 

      Wipe a small amount of oil on the new filter gasket.

  • 51. 
    Technician A says that to measure freeze protection, you can use a refractometer. Technician B says that to measure freeze protection, you can use a hydrometer. Who is correct?
    • A. 

      Technician A

    • B. 

      Technician B

    • C. 

      Both Technician A and Technician B

    • D. 

      Neither Technician A nor Technician B

  • 52. 
    Technician A says that a leaky radiator cap could cause and engine to overheat. Technician B says that a thermostat stuck closed could cause the engine to overheat. Who is correct?
    • A. 

      Technician A

    • B. 

      Technician B

    • C. 

      Both Technician A and Technician B

    • D. 

      Neither Technician A nor Technician B

  • 53. 
    The cooling system device that maintains pressure in order to raise the boiling point of the coolant is called the:
    • A. 

      Water pump

    • B. 

      Pressure cap

    • C. 

      Thermostat

    • D. 

      Radiator

  • 54. 
    All of the following tests are used to test fuel pump performance, EXCEPT:
    • A. 

      Refractometer test

    • B. 

      Scan tool test

    • C. 

      Pressure/volume test

    • D. 

      Lab scope test

  • 55. 
    A lean oxygen sensor signal along with a large increase in fuel trim possibly indicates that the vehicle:
    • A. 

      Has too little alcohol content in the fuel

    • B. 

      Is running normally

    • C. 

      Is running rich

    • D. 

      Has a fuel delivery problem

  • 56. 
    Technician A says that you can test the ignition coil windings with an ohmmeter. Technician B says you can test the ignition coil windings with a voltmeter. Who is correct?
    • A. 

      Technician A

    • B. 

      Technician B

    • C. 

      Both Technician A and Technician B

    • D. 

      Neither Technician A nor Technician B

  • 57. 
    Oxygen sensors compare the amount of ________ in the exhaust gas to the outside air.
    • A. 

      Hydrocarbons

    • B. 

      Oxygen

    • C. 

      Unburned fuel

    • D. 

      Carbon dioxide

  • 58. 
    Unburned gasoline vapors are which of these pollutants?
    • A. 

      Carbon monoxide (CO)

    • B. 

      Oxides of Nitrogen (NOX)

    • C. 

      Carbon Dioxide (CO2)

    • D. 

      Hydrocarbons (HCs)

  • 59. 
    What is the term used to describe an engine that the valves and piston can hit each other if the timing belt breaks?
    • A. 

      Interference engine

    • B. 

      Freewheeling engine

    • C. 

      Valve in piston engine

    • D. 

      Collision engine

  • 60. 
    What type of belt typically drives the camshaft?
    • A. 

      V Belt

    • B. 

      Serpentine belt

    • C. 

      Cogged belt

    • D. 

      Stretch-fit belt

  • 61. 
    Tech A says that tires are marked with a date code listing the date the tires should be discarded. Tech B says that any tires with a three-digit date code should be discarded since they are too old to be safely in service. Who is correct?
    • A. 

      Technician A

    • B. 

      Technician B

    • C. 

      Both Tech A and B

  • 62. 
    Tech A says that the “P” in “P225/70, R15” means the tire’s inflation “pressure” in kpa. Tech B says that the “T” in “T135R16” means “temporary”. Who is correct?
    • A. 

      Technician A

    • B. 

      Technician B

    • C. 

      Both Technician A and B

    • D. 

      Neither Technician A nor B

  • 63. 
    Jack needs to perform tire rotation on a car that is an all-wheel drive with directional, differently sized tires. Which of these methods should he follow?
    • A. 

      Forward-cross pattern

    • B. 

      X pattern

    • C. 

      Front-to-rear pattern

    • D. 

      Dismount and remount on the wheels from the other side

  • 64. 
    Heavy pulling of a vehicle to either the left or the right could be due to any of the following EXCEPT:
    • A. 

      Mismatched tire sizes or pressures

    • B. 

      Out-of-alignment wheels

    • C. 

      Nitrogen filled tires

    • D. 

      A dragging front brake assembly

  • 65. 
    Technician A says that a tire with more wear on the center of the tread is caused by under-inflation of the tire.  Technician B says that feathering of the tire tread is most commonly a result of excessive toe-in or toe-out. Who is correct?
    • A. 

      Technician A

    • B. 

      Technician B

    • C. 

      Both Technician A and B

    • D. 

      Neither Technician A nor B

  • 66. 
    Tech A says that lead wheel weights have been outlawed in some States. Tech B says that when balancing a tire, it is good practice to reuse the wheel weights to cut down on waste. Who is correct?
    • A. 

      Technician A

    • B. 

      Technician B

    • C. 

      Both Technician A and B

    • D. 

      Neither Technician A nor B

  • 67. 
    Tech A says that some TPMS sensors are part of the tire’s valve stem. Tech B says that some TPMS sensors are held on by a large band that fits around the center of the rim. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both Tech A and B

    • D. 

      Neither Tech A nor B

  • 68. 
    The Ackermann principle is applied in steering geometry to:
    • A. 

      Reduce vibration of the vehicle

    • B. 

      Reduce wobbling of the vehicle

    • C. 

      Navigate a corner without scrubbing

    • D. 

      Make steering response sharper

  • 69. 
    The pickle fork tool can be used for:
    • A. 

      Removing rod ends

    • B. 

      Checking the continuity of the electronic circuit

    • C. 

      Removing pitman arms

    • D. 

      Centering the clock spring

  • 70. 
    Tech A says that in the steering system, play generally results from worn ball sockets and bushings. Tech B says that hard steering is typically caused by tire pressure that is too high. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both A And B

    • D. 

      Neither A nor B

  • 71. 
    Tech A says that to properly check a tie-rod end, the technician should twist the tie-rod end, and any rotational movement means the joint is bad. Tech B says that when checking a tie-rod, any side-to-side movement in the joint means the tie-rod is bad. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 72. 
    Tech A says that when replacing the clock spring, you should turn it all the way to either end and then install it in the steering column. Tech B says that clock springs are used to return the steering wheel to its centered position. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 73. 
    The movement around an imaginary line drawn down the center of the vehicle from front to back is called:
    • A. 

      Yaw

    • B. 

      Roll

    • C. 

      Pitch

    • D. 

      Rock

  • 74. 
    Tech A says that a loaded ball joint supports the weight of the vehicle Tech B says that a ball joint in a MacPherson strut suspension is a follower joint (not loaded). Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 75. 
    Tech A says that when unloading a suspension where the coil spring or torsion bar is pushing against the lower control arm, a wood block must be placed between the up­per control arm and the frame. Tech B says when unloading a MacPherson strut suspension with only a lower control arm, raise the vehicle by the frame, and allow the suspen­sion to hang free. Who is correct? 
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 76. 
    All of the following statements are true except:
    • A. 

      The condition in which the front of the wheels are closer together than the rear of the wheels is called toe-in.

    • B. 

      The condition in which the front of the wheels are farther apart than the rear is called toe-out.

    • C. 

      Toe-out on turns is the relative toe setting of the rear wheels as the vehicle turns.

    • D. 

      Improper toe settings cause much faster tire wear than camber or caster.

  • 77. 
    Tech A says that a vehicle will tend to pull toward the side with the most positive camber. Tech B says that camber is the forward and backward tilt of the steering axis from ver­tical when viewed from the side. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 78. 
    Tech A says that the front wheels should be aligned before the rear wheels. Tech B says that front wheel toe should be adjusted after front wheel caster and camber. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 79. 
    The master cylinder should be inspected for internal and external leaks in all of the following scenarios except:
    • A. 

      The brake fluid is low in the reservoir.

    • B. 

      The brake warning light is on.

    • C. 

      The brake pedal reserve height is too low.

    • D. 

      The brake pedal is harder to push than normal.

  • 80. 
    Tech A says that a service brake pedal that does not return all the way causes the brake warning light on the instrument panel to stay on. Tech B says that a service brake pedal that does not return causes the brake lights to stay on. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 81. 
    Tech A says that a sinking brake pedal is an indication of a faulty vacuum booster. Tech B says that the master cylin­der can only have external leaks, not internal leaks. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 82. 
    Tech A says that bench bleeding a master cylinder prevents having to bleed air from the brake lines during replacement. Tech B says that bench bleeding the master cylinder makes bleeding the brakes on the vehicle easier. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 83. 
    Tech A says that disc brake pads require higher application force than drum brake shoes. Tech B says that disc brakes are self-energizing. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 84. 
    Tech A says that calipers use steel piston rings to seal each piston. Tech B says that calipers use a square section O-ring to seal each piston. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 85. 
    Tech A says that rotors should be measured for thickness variation (parallelism). Tech B says that rotors should be measured for lateral runout. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 86. 
    Tech A says that rotors that are too thin cannot handle as much heat and will experience brake fade sooner. Tech B says that brake pedal pulsation is the result of air in the hy­draulic system. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 87. 
    Tech A says that a micrometer is used to measure rotor thickness variation. Tech B says that a micrometer is used to measure rotor lateral runout. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 88. 
    Tech A says that most brake drums are designed to be machined if minor surface issues are present. Tech B says that brake drums can be reused if they are machined larger than specifications, as long as the surface is smooth. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 89. 
    Tech A says that a cleaned-up self-adjuster can be installed on either side of the vehicle. Tech B says that grease seals are meant to be reusable. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 90. 
    Tech A says that brake shoe linings saturated with brake fluid from a leaky wheel cylinder can be cleaned with brake cleaner and reused as long as they aren’t worn out. Tech B says that brake shoes should be replaced in axle sets. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 91. 
    Tech A says that when performing a brake job on the rear axle of an older vehicle, inspection finds brake fluid under the dust boot; the wheel cylinder should be replaced. Tech B says that when a drum brake return spring has failed, springs on both rear wheels need to be replaced. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 92. 
    All of the following statements describing an electrical cir­cuit are true except:
    • A. 

      An open circuit does not have continuity.

    • B. 

      Current flows through the fuse into the circuit wires.

    • C. 

      Electrical circuits consist of a power source, a fuse, a switch, a component that performs work, and wires connecting them all together.

    • D. 

      When the switch is moved to closed position, the current path is broken and current flow stops.

  • 93. 
    Tech A says that if resistance stays the same and voltage goes up, then amperage goes down. Tech B says that if volt­age stays the same and resistance goes down, then amper­age goes down. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 94. 
    Two technicians are discussing a series circuit with four re­sistors of various resistances. Tech A says that current flow is different in each resistor. Tech B says that current flow is the same in each resistor. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 95. 
    Tech A says that to read amperage, the meter must be hooked up in series in a circuit. Tech B says that to read amperage at a load, you should place one lead of the amme­ter on the input side of the load and the other lead on the output. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 96. 
    Two technicians are discussing scope testing. Tech A says that the vertical axis of the screen shows voltage. Tech B says that the horizontal axis shows time. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 97. 
    Which component in the charging system controls the strength of the rotating magnetic field (rotor)?
    • A. 

      Voltage regulator

    • B. 

      Diode assembly

    • C. 

      Rectifier assembly

    • D. 

      A cooling fan

  • 98. 
    Tech A says that a voltage drop of 0.8 volt on a 12V starter ground circuit is within specifications. Tech B says that high starter draw current could be caused by a spun main bearing in the engine. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 99. 
    Tech A says that the rectifier assembly controls the output of the alternator. Tech B says that the alternator output cir­cuit voltage drop must be checked with the charging system under a heavy load. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 100. 
    Tech A says that a voltage drop on the ground side of a bulb won’t affect its brightness because the electricity has already been used up. Tech B says that a voltage drop is a good way to determine if there is unwanted resistance in a circuit. Who is correct?
    • A. 

      Tech A

    • B. 

      Tech B

    • C. 

      Both A and B

    • D. 

      Neither A nor B