The Fleet Tech Challenge Trivia: Quiz

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| By Erin Ingersoll
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Erin Ingersoll
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Quizzes Created: 2 | Total Attempts: 6,512
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  • 1/100 Questions

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

    • It uses a warning light or message as a driver warning
    • It is often referred to as a TPMS
    • It can automatically stop a leak in a tire
    • It can be diagnosed with an appropriate scan tool
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About This Quiz


Hey, are you searching for the fleet tech challenge trivia quiz? Well, look no more as you have arrived at the right place. To be a fleet technician, you must exhibit good knowledge of electricity, how it flows, and how to ensure safe electrical connections. If there is an issue in the field, you need to develop a solution and think on your feet. This quiz is designed to test out if you have the skills for the position based on real examples. Check it out!

The Fleet Tech Challenge Trivia: Quiz - Quiz

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  • 2. 

    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?

    • Tech A

    • Tech B

    • Both A and B

    • Neither A nor B

    Correct Answer
    A. Tech B
    Explanation
    Tech B is correct. Bench bleeding a master cylinder does make bleeding the brakes on the vehicle easier. Bench bleeding involves filling the master cylinder with brake fluid and then using a tool to pressurize the fluid, which helps remove any air bubbles trapped in the cylinder. This ensures that when the master cylinder is installed in the vehicle, there is no air in the brake lines, making the brake bleeding process quicker and more effective.

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  • 3. 

    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?

    • Tech A

    • Tech B

    • Both A and B

    • Neither A nor B

    Correct Answer
    A. Tech B
    Explanation
    Tech B is correct. Brake shoes should be replaced in axle sets. This is because brake shoes wear out over time and it is important to maintain balanced braking performance on both sides of the axle. Replacing only one brake shoe can result in uneven braking and potential safety issues. Additionally, brake shoes that have been saturated with brake fluid may have compromised their effectiveness and should not be reused.

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  • 4. 

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

    • Mismatched tire sizes or pressures

    • Out-of-alignment wheels

    • Nitrogen filled tires

    • A dragging front brake assembly

    Correct Answer
    A. Nitrogen filled tires
    Explanation
    Heavy pulling of a vehicle to either the left or the right can be caused by mismatched tire sizes or pressures, out-of-alignment wheels, or a dragging front brake assembly. Nitrogen filled tires, however, do not have any direct impact on the steering or pulling of a vehicle. The use of nitrogen instead of regular air in tires is primarily done to maintain more consistent tire pressure and reduce the risk of tire failure due to moisture or temperature changes. Therefore, nitrogen filled tires are not a likely cause of heavy pulling in a vehicle.

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  • 5. 

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

    • Engine oil

    • Automatic transmission fluid

    • Gear oil

    • Compressor lube

    Correct Answer
    A. Gear oil
    Explanation
    In many rear-wheel drive vehicles, the wheel bearings are lubricated with gear oil that also lubricates the differential assembly. Gear oil is specifically designed to withstand the high pressures and temperatures generated by the gears in the differential. It provides excellent lubrication and helps to reduce friction and wear on the bearings and gears. Using engine oil, automatic transmission fluid, or compressor lube would not be suitable for this purpose as they are not formulated to handle the unique demands of the differential and wheel bearings.

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  • 6. 

    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?

    • Tech A

    • Tech B

    • Both A and B

    • Neither A nor B

    Correct Answer
    A. Tech B
    Explanation
    Tech B is correct. When checking a tie-rod, any side-to-side movement in the joint indicates that the tie-rod is bad. Rotational movement, as suggested by Tech A, may not necessarily indicate a problem with the tie-rod. Therefore, Tech B's statement is more accurate in determining the condition of the tie-rod.

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  • 7. 

    Intake valves in the cylinder head are closed by pressure from the:

    • Exhaust

    • Intake manifold

    • Valve springs

    • Piston

    Correct Answer
    A. Valve springs
    Explanation
    Valve springs are responsible for closing the intake valves in the cylinder head. These springs exert pressure on the valves, ensuring that they remain closed when needed. When the piston moves downward during the intake stroke, the intake valves open against the force of the valve springs, allowing air and fuel to enter the combustion chamber. However, when the piston moves back up during the compression stroke, the valve springs push the intake valves closed, preventing any backflow of gases into the intake manifold.

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  • 8. 

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

    • Filled with carbon dioxide

    • Filled with nitrogen

    • Filled with hydrogen

    • Filled with argon

    Correct Answer
    A. Filled with nitrogen
    Explanation
    A green valve stem cap on tires on recent model-year vehicles indicates that the tires are filled with nitrogen. Nitrogen is commonly used as an alternative to regular air in tires because it has several advantages. Nitrogen is less likely to leak through the tire rubber, resulting in more consistent tire pressure over time. It also helps to reduce oxidation and corrosion within the tire, leading to longer tire life. Additionally, nitrogen-filled tires can provide better fuel efficiency and improved handling.

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  • 9. 

    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?

    • Tech A

    • Tech B

    • Both A And B

    • Neither A nor B

    Correct Answer
    A. Tech A
    Explanation
    Tech A is correct. Play in the steering system generally results from worn ball sockets and bushings. This means that there is excessive movement or looseness in the steering components, which can lead to a lack of responsiveness and precision in steering. On the other hand, Tech B's statement about tire pressure being the cause of hard steering is incorrect. Hard steering is typically caused by problems with the power steering system, such as low fluid levels or a malfunctioning pump.

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  • 10. 

    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?

    • Technician A

    • Technician B

    • Both Technician A and B

    • Neither Technician A nor B

    Correct Answer
    A. Technician B
    Explanation
    Technician B is correct. Feathering of the tire tread is indeed most commonly a result of excessive toe-in or toe-out. When there is excessive toe-in or toe-out, the tires are not aligned properly and tend to scrub against the road surface, causing the feathering pattern. On the other hand, wear on the center of the tread is usually caused by over-inflation of the tire, not under-inflation as stated by Technician A.

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  • 11. 

    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?

    • Tech A

    • Tech B

    • Both A and B

    • Neither A nor B

    Correct Answer
    A. Both A and B
    Explanation
    Both Tech A and Tech B are correct. Measuring rotors for thickness variation (parallelism) is important as it ensures that the rotor is uniform in thickness, which is crucial for proper braking performance. On the other hand, measuring rotors for lateral runout is also necessary as it checks for any wobbling or unevenness in the rotor's surface, which can cause vibrations and uneven braking. Therefore, both measurements are essential for ensuring the proper functioning of the rotors.

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  • 12. 

    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?

    • Technician A

    • Technician B

    • Both Technician A and Technician B

    • Neither Technician A nor Technician B

    Correct Answer
    A. Technician B
    Explanation
    Technician B is correct. Packing a wheel bearing assembly involves filling the bearing with grease using a bearing packer. This ensures that the entire bearing is lubricated properly and helps to prevent premature wear and damage. Smearing grease around the outside of the bearing, as suggested by Technician A, does not effectively lubricate the bearing and may lead to inadequate lubrication and potential failure.

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  • 13. 

    All of the following statements are true except:

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

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

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

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

    Correct Answer
    A. Toe-out on turns is the relative toe setting of the rear wheels as the vehicle turns.
    Explanation
    Toe-out on turns is not the relative toe setting of the rear wheels as the vehicle turns. Toe-out on turns refers to the situation where the front wheels are set to turn slightly outward during a turn, which helps to improve stability and reduce understeer. The relative toe setting of the rear wheels as the vehicle turns is not specifically mentioned in the given statements.

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  • 14. 

    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?

    • Technician A

    • Technician B

    • Both Technicians A and B

    • Neither Technician A nor B

    Correct Answer
    A. Technician B
    Explanation
    Technician B is correct. A vehicle's charging system should typically run at around 13.5 to 14.5 volts when the engine is running. A voltage of 17.2 volts indicates a faulty voltage regulator, which is responsible for regulating the voltage produced by the alternator. If the voltage regulator is faulty, it can cause the charging system to output a higher voltage, potentially damaging the vehicle's electrical components. Therefore, Technician B's statement about a faulty voltage regulator causing the high voltage condition is accurate.

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  • 15. 

    Fuses prevent circuit damage by:

    • Limiting voltage increases

    • Reducing wiring length

    • Decreasing circuit resistance

    • Stopping excessive current flow

    Correct Answer
    A. Stopping excessive current flow
    Explanation
    Fuses prevent circuit damage by stopping excessive current flow. When the current in a circuit exceeds the rated value of the fuse, the fuse wire inside it melts, creating an open circuit and interrupting the flow of current. This protects the circuit and its components from damage caused by overloading or short circuits. By stopping excessive current flow, fuses ensure that the electrical system operates within safe limits and prevents overheating, fires, and other hazards.

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  • 16. 

    Air in the brake lines will cause what type of problem?

    • Vibration in the brake pedal during stops

    • Spongy brake pedal

    • Hard brake pedal

    • Brake noise

    Correct Answer
    A. Spongy brake pedal
    Explanation
    Air in the brake lines can cause a spongy brake pedal. When air enters the brake lines, it can compress and create a soft or spongy feeling when the brake pedal is pressed. This can result in a longer stopping distance and a decrease in braking efficiency. The presence of air in the brake lines can also lead to a loss of brake pressure, which can be dangerous and affect the overall performance of the braking system. Therefore, it is important to regularly bleed the brake lines to remove any air and ensure proper brake function.

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  • 17. 

    When installing a new oil filter, it is a good idea to:

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

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

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

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

    Correct Answer
    A. Wipe a small amount of oil on the new filter gasket.
    Explanation
    When installing a new oil filter, it is a good idea to wipe a small amount of oil on the new filter gasket. This helps to create a better seal between the filter and the engine, preventing any oil leaks. The oil also helps to lubricate the gasket, making it easier to remove the filter during the next oil change. Applying contact cement, gasket sealer, or installing the rubber gasket dry would not provide the same benefits and could potentially cause issues such as leaks or difficulty in removing the filter.

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  • 18. 

    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?

    • Technician A

    • Technician B

    • Both Technician A and Technician B

    • Neither Technician A nor Technician B

    Correct Answer
    A. Both Technician A and Technician B
    Explanation
    Both Technician A and Technician B are correct. A leaky radiator cap can cause the engine to overheat because it can allow coolant to escape, leading to a decrease in coolant levels and an increase in engine temperature. Similarly, a thermostat stuck closed can also cause the engine to overheat because it prevents coolant from circulating properly, leading to a buildup of heat in the engine.

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  • 19. 

    What type of belt typically drives the camshaft?

    • V Belt

    • Serpentine belt

    • Cogged belt

    • Stretch-fit belt

    Correct Answer
    A. Cogged belt
    Explanation
    A cogged belt is typically used to drive the camshaft. Unlike a V belt or serpentine belt, which have smooth surfaces, a cogged belt has teeth that mesh with the pulley's grooves, providing a better grip and preventing slippage. This is crucial for the camshaft, as it needs to maintain precise timing and synchronization with the engine's valves. The teeth on the cogged belt ensure a more reliable transfer of power, making it the ideal choice for driving the camshaft.

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  • 20. 

    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?

    • Tech A

    • Tech B

    • Both Tech A and B

    • Neither Tech A nor B

    Correct Answer
    A. Both Tech A and B
    Explanation
    Both Tech A and Tech B are correct. Some TPMS sensors are indeed part of the tire's valve stem, while others are held on by a large band that fits around the center of the rim.

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  • 21. 

    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?

    • Tech A

    • Tech B

    • Both A and B

    • Neither A nor B

    Correct Answer
    A. Both A and B
    Explanation
    Both technicians are correct. In scope testing, the vertical axis of the screen represents voltage, while the horizontal axis represents time. This allows technicians to visually analyze the relationship between voltage and time, making it easier to identify any abnormalities or patterns in the electrical signals being tested.

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  • 22. 

    Disc brake rotors can be out of specification in two ways: thickness variation and:

    • Hardness

    • Tire runout

    • Lateral runout

    • Specific gravity

    Correct Answer
    A. Lateral runout
    Explanation
    Lateral runout refers to the amount of deviation or wobbling of the disc brake rotor as it rotates. When a disc brake rotor has lateral runout, it means that it is not perfectly flat or centered, causing the brake pads to make uneven contact with the rotor surface. This can result in vibrations, uneven braking, and decreased braking performance. Therefore, if the disc brake rotor is out of specification in terms of lateral runout, it needs to be corrected or replaced to ensure proper braking function.

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  • 23. 

    The aspect ratio of a tire is:

    • The width of the tire

    • The ratio of the inflation pressures

    • The rim diameter

    • The ratio of its height to its width

    Correct Answer
    A. The ratio of its height to its width
    Explanation
    The aspect ratio of a tire refers to the ratio of its height to its width. This means that the height of the tire is a certain percentage of its width. For example, if a tire has an aspect ratio of 60, it means that the height of the tire is 60% of its width. This aspect ratio is important because it affects the overall performance and handling of the tire. A lower aspect ratio generally means better handling and cornering abilities, while a higher aspect ratio offers a more comfortable ride.

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  • 24. 

    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?

    • Tech A

    • Tech B

    • Both A and B

    • Neither A nor B

    Correct Answer
    A. Tech A
    Explanation
    Tech A is correct. Most brake drums are designed to be machined if minor surface issues are present. This means that instead of replacing the entire brake drum, it can be resurfaced to remove any imperfections and restore its smoothness. Tech B's statement is incorrect because machining the brake drum larger than specifications can compromise its integrity and performance.

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  • 25. 

    Excessive disc brake rotor thickness variation will cause:

    • A squishy brake pedal.

    • The brake pads to wear on a slant.

    • The caliper pistons to seize in their bores.

    • Brake pedal pulsation.

    Correct Answer
    A. Brake pedal pulsation.
    Explanation
    Excessive disc brake rotor thickness variation will cause brake pedal pulsation. When the rotor thickness varies, it can create uneven contact between the brake pads and the rotor. This uneven contact causes the brake pedal to pulsate or vibrate when the brakes are applied. This pulsation is felt by the driver and indicates a problem with the braking system. It is important to address this issue as it can affect the performance and safety of the vehicle's braking system.

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  • 26. 

    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?

    • Technician A

    • Technician B

    • Both Technician A and Technician B

    • Neither Technician A nor Technician B

    Correct Answer
    A. Technician B
    Explanation
    Technician B is correct. Oil filters should only be installed by hand. Using a filter wrench to tighten the oil filter can lead to over-tightening, which can cause the filter to become stuck and difficult to remove during the next oil change. Hand tightening ensures that the filter is secure but not overly tightened, allowing for easier removal in the future.

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  • 27. 

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

    • Neutral safety switch

    • Battery ground cable

    • Ignition switch

    • Ignition system or fuel system

    Correct Answer
    A. Ignition system or fuel system
    Explanation
    Disconnecting the ignition system or fuel system would prevent the engine from starting. The ignition system is responsible for creating the spark that ignites the fuel in the engine cylinders, while the fuel system is responsible for delivering fuel to the engine. If either of these systems is disconnected, the engine will not receive the necessary spark or fuel to start and run.

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  • 28. 

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

    • Interference engine

    • Freewheeling engine

    • Valve in piston engine

    • Collision engine

    Correct Answer
    A. Interference engine
    Explanation
    An interference engine is a term used to describe an engine in which the valves and piston occupy the same space in the combustion chamber at different times. If the timing belt breaks in an interference engine, the valves and piston can collide, causing significant damage to the engine. This is because the timing belt is responsible for synchronizing the movement of the valves and piston. In contrast, a freewheeling engine allows the valves and piston to operate independently, so if the timing belt breaks, there is no risk of collision. The terms "valve in piston engine" and "collision engine" are not commonly used to describe this specific scenario.

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  • 29. 

    All of the following tests are used to test fuel pump performance, EXCEPT:

    • Refractometer test

    • Scan tool test

    • Pressure/volume test

    • Lab scope test

    Correct Answer
    A. Refractometer test
    Explanation
    A refractometer test is not used to test fuel pump performance. A refractometer is a device used to measure the refractive index of a substance, which is not relevant to testing fuel pump performance. On the other hand, the scan tool test, pressure/volume test, and lab scope test are commonly used methods to assess the functionality and efficiency of a fuel pump.

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  • 30. 

    What is an example open circuit?

    • A power wire that has melted to a power wire

    • A break in the wire

    • A power wire that has melted to a ground wore

    • A switch that has current flowing through it

    Correct Answer
    A. A break in the wire
    Explanation
    An open circuit refers to a circuit where there is a break in the wire, causing a discontinuity in the flow of current. In this case, the correct answer is "A break in the wire," which accurately describes an open circuit. When there is a break in the wire, the circuit is incomplete, and electricity cannot flow through it. This can happen due to various reasons such as a damaged wire or a loose connection.

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  • 31. 

    All of the following is a part of the hydraulic brake system, EXCEPT:

    • Brake hoses

    • Disc brake caliper

    • Wheel cylinder

    • Parking brake assembly

    Correct Answer
    A. Parking brake assembly
    Explanation
    The hydraulic brake system is responsible for transmitting the pressure from the brake pedal to the brake pads or shoes, which then apply pressure to the rotors or drums to slow down or stop the vehicle. Brake hoses, disc brake calipers, and wheel cylinders are all components of the hydraulic brake system as they play a crucial role in the transmission and application of hydraulic pressure. However, the parking brake assembly is not a part of the hydraulic brake system. The parking brake assembly is a separate system that is used to mechanically hold the vehicle in place when parked.

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  • 32. 

    The pickle fork tool can be used for:

    • Removing rod ends

    • Checking the continuity of the electronic circuit

    • Removing pitman arms

    • Centering the clock spring

    Correct Answer
    A. Removing rod ends
    Explanation
    The pickle fork tool is commonly used for separating or removing rod ends. It is designed to fit between the joint and the connecting part, allowing for easy removal without causing damage. This tool is specifically designed for this purpose and is not typically used for checking circuit continuity, removing pitman arms, or centering clock springs.

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  • 33. 

    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?

    • Tech A

    • Tech B

    • Both A and B

    • Neither A nor B

    Correct Answer
    A. Tech A
    Explanation
    Tech A is correct because thinner rotors have less material to absorb and dissipate heat, causing them to overheat more quickly. This can lead to brake fade, which is the loss of braking power due to overheating. On the other hand, Tech B's statement about brake pedal pulsation being caused by air in the hydraulic system is incorrect. Brake pedal pulsation is usually caused by unevenly worn brake rotors or warped rotors, not air in the hydraulic system.

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  • 34. 

    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?

    • Technician A

    • Technician B

    • Both Techs A and B

    • Neither Technician A nor B

    Correct Answer
    A. Technician A
    Explanation
    Technician A is correct. A higher than normal voltage drop can indeed indicate high resistance. When resistance increases in a circuit, it restricts the flow of current, causing a higher voltage drop across the resistor. This is Ohm's Law in action, which states that voltage (V) equals current (I) multiplied by resistance (R). Therefore, Technician A's statement is accurate. Technician B, on the other hand, is incorrect because high resistance actually decreases current flow, rather than increasing it.

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  • 35. 

    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?

    • Technician A

    • Technician B

    • Both A and B

    • Neither A nor B

    Correct Answer
    A. Technician A
    Explanation
    Technician A is correct. To measure amperage, the meter must be hooked up in series in a circuit. This means that the meter is placed in the path of the current flow, allowing it to measure the amount of current passing through. Technician B's statement is incorrect because placing the leads of the ammeter on the input and output sides of the load would not provide an accurate measurement of the amperage.

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  • 36. 

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

    • They are sometimes equipped with a grease fitting

    • They can be disassembled, cleaned, and repacked with grease

    • They are of ball-and-socket design

    • They allow movement without looseness or play

    Correct Answer
    A. They can be disassembled, cleaned, and repacked with grease
    Explanation
    The correct answer is "they can be disassembled, cleaned, and repacked with grease." This is because flexible joints in the steering linkage are typically sealed and not intended to be disassembled or repacked with grease. They are designed to allow movement without looseness or play and are often equipped with a grease fitting for lubrication. The joints are usually of ball-and-socket design, which allows for flexibility and smooth movement.

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  • 37. 

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

    • Water pump

    • Pressure cap

    • Thermostat

    • Radiator

    Correct Answer
    A. Pressure cap
    Explanation
    The pressure cap is the correct answer because it is responsible for maintaining pressure in the cooling system. By increasing the pressure, the boiling point of the coolant is raised, allowing it to absorb more heat before boiling. This helps in preventing overheating of the engine and ensures efficient cooling. The pressure cap also acts as a safety valve, releasing excess pressure to prevent damage to the cooling system.

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  • 38. 

    When performing a battery open circuit voltage test, what voltage indicates a fully charged battery?

    • 12.0 volts

    • 12.4 volts

    • 12.6 volts

    • 13.5 volts

    Correct Answer
    A. 12.6 volts
    Explanation
    A fully charged battery is indicated by a voltage of 12.6 volts. This is because a fully charged lead-acid battery typically has a voltage of around 2.1 volts per cell, and since most automotive batteries have 6 cells, the total voltage would be 12.6 volts.

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  • 39. 

    When measuring voltage with a voltmeter, place:

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

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

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

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

    Correct Answer
    A. The red lead in the "Volt/Ohms" slot and the black lead in the "Common" slot.
    Explanation
    When measuring voltage with a voltmeter, the red lead should be placed in the "Volt/Ohms" slot and the black lead should be placed in the "Common" slot. This is because the "Volt/Ohms" slot is specifically designed to measure voltage, while the "Common" slot is used as a reference point for the measurement. Placing the leads in these specific slots ensures accurate voltage measurement.

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  • 40. 

    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?

    • Technician A

    • Technician B

    • Both Technician A and Technician B

    • Neither Technician A nor Technician B

    Correct Answer
    A. Technician A
    Explanation
    Technician A is correct. Lug nuts should be torqued to specifications to ensure that they are tightened to the appropriate level. This helps to prevent over-tightening, which can lead to damage, or under-tightening, which can result in loose lug nuts and potential safety hazards. Following the recommended torque specifications ensures that the lug nuts are properly secured and maintains the integrity of the wheel assembly. Technician B is incorrect in suggesting that lug nuts should be tightened in a random sequence, as this can lead to uneven tightening and potential wheel imbalance.

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  • 41. 

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

    • The brake fluid is low in the reservoir.

    • The brake warning light is on.

    • The brake pedal reserve height is too low.

    • The brake pedal is harder to push than normal.

    Correct Answer
    A. The brake pedal is harder to push than normal.
    Explanation
    The master cylinder should be inspected for internal and external leaks in all of the given scenarios except when the brake pedal is harder to push than normal. This is because a harder brake pedal typically indicates a problem with the brake booster or the brake pedal linkage, rather than an issue with the master cylinder. In the other scenarios, such as low brake fluid, brake warning light on, or low brake pedal reserve height, there is a higher likelihood of a leak in the master cylinder, which requires inspection.

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  • 42. 

    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?

    • Tech A

    • Tech B

    • Both A and B

    • Neither A nor B

    Correct Answer
    A. Tech A
    Explanation
    Tech A is correct. A micrometer is a precision measuring instrument used to measure the thickness of objects with high accuracy. In the context of this question, a micrometer can be used to measure rotor thickness variation, which refers to the difference in thickness between different parts of the rotor. On the other hand, rotor lateral runout refers to the deviation of the rotor from its true circular path, and it is typically measured using a dial indicator or a runout gauge, not a micrometer. Therefore, Tech B is incorrect.

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  • 43. 

    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?

    • Technician A

    • Technician B

    • Both Technicians A and B

    • Neither Technician A nor B

    Correct Answer
    A. Technician B
    Explanation
    Technician B is correct. A parasitic draw refers to an excessive amount of electrical current being drawn from the battery when the vehicle is turned off. This can drain the battery over time. When performing a parasitic draw test, it is important to wait until all of the modules in the vehicle have gone to sleep. Modules are electronic components in the vehicle that can draw power even when the vehicle is not in use. Waiting for them to go to sleep ensures an accurate test of the parasitic draw.

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  • 44. 

    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?

    • Tech A

    • Tech B

    • Both A and B

    • Neither A nor B

    Correct Answer
    A. Both A and B
    Explanation
    Both Tech A and Tech B are correct. Tech A is correct because if there is brake fluid under the dust boot of the wheel cylinder, it indicates a leak and the wheel cylinder should be replaced. Tech B is correct because if the return spring of a drum brake has failed on one wheel, it is likely that the springs on both rear wheels need to be replaced to ensure balanced braking performance.

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  • 45. 

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

    • 1 amp

    • 2 amps

    • 3 amps

    • 4 amps

    Correct Answer
    A. 3 amps
    Explanation
    The current flowing through a resistor in a series circuit is determined by Ohm's Law, which states that current (I) is equal to the voltage (V) divided by the resistance (R). In this case, the voltage is 12 volts and the resistance is 4 ohms. Therefore, the current flowing through the resistor can be calculated as 12 volts divided by 4 ohms, which equals 3 amps.

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  • 46. 

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

    • Removal of any heavy items from the trunk or truck bed

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

    • Inspecting and confirming correct tire size

    • Removing the front wheels to prepare for adjustment

    Correct Answer
    A. Removing the front wheels to prepare for adjustment
    Explanation
    The correct answer is removing the front wheels to prepare for adjustment. This is because a pre-alignment inspection involves checking various aspects such as removing heavy items from the trunk or truck bed, inspecting and adjusting tire air pressure, and confirming correct tire size. However, removing the front wheels is not a part of the pre-alignment inspection process.

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  • 47. 

    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?

    • Technician A

    • Technician B

    • Both Technician A and Technician B

    • Neither Technician A nor Technician B

    Correct Answer
    A. Technician B
    Explanation
    Technician B is correct. When checking a tire's air pressure, it is recommended to refer to the specifications on the tire placard, which is usually located on the driver's door, door pillar, or glove compartment lid. This information provides the manufacturer's recommended tire pressure for optimal performance and safety. The tire sidewall information may provide the maximum tire pressure, but it does not necessarily indicate the recommended pressure for normal driving conditions.

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  • 48. 

    Camber is the:

    • Axis around which the wheel assembly swivels as it turns.

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

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

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

    Correct Answer
    A. Inward or outward (side to side) vertical tilt of the wheel.
    Explanation
    Camber refers to the inward or outward vertical tilt of the wheel. It is the angle at which the top of the wheel tilts towards the vehicle's center or away from it. This tilt helps distribute the weight of the vehicle evenly across the tire's contact patch, ensuring optimal traction and stability during cornering. Correct camber alignment is crucial for tire wear and overall vehicle handling.

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  • 49. 

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

    • Cycle

    • Revolutions

    • Bore

    • Stroke

    Correct Answer
    A. Stroke
    Explanation
    When the piston moves from bottom dead center (BDC) to top dead center (TDC) or vice versa, it is referred to as a stroke. In an internal combustion engine, the piston undergoes four strokes in a cycle: intake, compression, power, and exhaust. During the intake stroke, the piston moves from TDC to BDC, drawing in the air-fuel mixture. In the compression stroke, the piston moves from BDC to TDC, compressing the mixture. The power stroke occurs when the ignited mixture pushes the piston from TDC to BDC, generating power. Finally, the exhaust stroke sees the piston move from BDC to TDC, expelling the exhaust gases.

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Quiz Review Timeline (Updated): May 29, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • May 29, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jul 21, 2017
    Quiz Created by
    Erin Ingersoll
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