Wheels And Tires Quiz

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  • 1/24 Questions

    A tire valve is a specially designed opening that allows a tire to be inflated and then automatically closes to prevent air from escaping. 

    • True
    • False
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About This Quiz

Get ready for a Wheels And Tires quiz. This quiz is about testing the basic knowledge of wheels and tires. If you are a professional wannabe, then this quiz is for you. It focuses on various essential parts of wheels and tires that are responsible for the proper functionality of a vehicle.
So, take this test and get to know what you didn't know before. Best of luck to you!

Wheels And Tires Quiz - Quiz

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  • 2. 

    Tires and wheels must be balanced statically and dynamically.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Tires and wheels must be balanced both statically and dynamically to ensure a smooth and safe ride. Static balancing involves evenly distributing the weight of the tire and wheel assembly, while dynamic balancing addresses any imbalances that occur when the tire rotates at high speeds. By balancing both statically and dynamically, potential issues such as vibrations, uneven tire wear, and steering problems can be minimized, resulting in better performance and longevity of the tires and wheels.

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  • 3. 

    The part of the tire that makes contact with the road is the:

    • Cords

    • Plies

    • Inner liner

    • Tread

    Correct Answer
    A. Tread
    Explanation
    The correct answer is "tread" because the tread is the part of the tire that comes into direct contact with the road surface. It is specifically designed with patterns and grooves to provide traction and grip, allowing the tire to maintain control and stability while driving. The tread also helps to channel water away from the tire, reducing the risk of hydroplaning and improving overall performance and safety.

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  • 4. 

    The tire must be an exact fit on the rim to:

    • Ensure the tire and rim will seal the air in a tubeless tire.

    • Transfer forces between the tire and wheel without slipping or chafing.

    • Prevent the tire from turning on the rim.

    • All of the above.

    Correct Answer
    A. All of the above.
    Explanation
    The tire must be an exact fit on the rim to ensure that the tire and rim will seal the air in a tubeless tire. If the fit is not exact, there could be air leakage. It is also important for the tire and wheel to transfer forces between each other without slipping or chafing, as this ensures proper traction and stability while driving. Additionally, an exact fit prevents the tire from turning on the rim, which could cause uneven wear and affect the vehicle's performance. Therefore, all of the given statements are correct.

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  • 5. 

    Tires can be balanced by the _____________ method.

    • Static

    • Dynamic

    • Road force

    • All of the above.

    Correct Answer
    A. All of the above.
    Explanation
    The correct answer is "All of the above." This means that all three methods - static, dynamic, and road force - can be used to balance tires. The static method involves adding weights to the wheel to balance it, while the dynamic method involves spinning the wheel to identify any imbalances and adding weights accordingly. The road force method measures the force exerted on the tire as it rolls on the road and adjusts the balance accordingly. Therefore, all three methods can be used to achieve a balanced tire.

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  • 6. 

    A tire with an A temperature rating has the best temperature resistance. 

    • True

    • False

    Correct Answer
    A. True
    Explanation
    A tire with an A temperature rating has the best temperature resistance. This means that the tire is designed to withstand high temperatures and maintain its performance without significant degradation. The A rating indicates that the tire can handle temperatures above 115 degrees Celsius, which is the highest rating available. Therefore, it can be concluded that a tire with an A temperature rating indeed has the best temperature resistance.

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  • 7. 

    The TPMS must be on all new vehicles starting with the 2008 model year.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The statement is true because the TPMS (Tire Pressure Monitoring System) is a safety feature that alerts the driver when the tire pressure is significantly low. It helps prevent accidents and improve fuel efficiency. The requirement for TPMS to be installed on all new vehicles starting from the 2008 model year ensures that all vehicles are equipped with this important safety feature.

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  • 8. 

    A green valve stem cap indicates that the tires are:

    • Green design.

    • Filled with nitrogen.

    • Filled with helium.

    • Filled with hydrogen.

    Correct Answer
    A. Filled with nitrogen.
    Explanation
    A green valve stem cap is commonly used to indicate that the tires are filled with nitrogen. Nitrogen is often preferred over regular air because it helps to maintain tire pressure for a longer period of time, reducing the chances of underinflation. It also helps to prevent oxidation and moisture buildup inside the tires, which can extend their lifespan.

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  • 9. 

    The aspect ratio of a tire is:

    • The width of a tire

    • The rim diameter.

    • The amount of air that is required to inflate the tire.

    • The ratio of height to width.

    Correct Answer
    A. The ratio of height to width.
    Explanation
    The aspect ratio of a tire refers to the ratio of its height to its width. It is a measurement that indicates how tall the tire is in relation to its width. This ratio is important as it affects the overall performance and handling of the tire. A lower aspect ratio typically results in better handling and a sportier look, while a higher aspect ratio provides a smoother ride and better traction. Therefore, the correct answer is the ratio of height to width.

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  • 10. 

    Technician A says that all lugs nuts must be torqued. Technician B says that all lug nuts must be properly sequenced. Who is correct?

    • Tech A.

    • Tech B.

    • Both Techs A and B.

    • Neither Techs A nor B.

    Correct Answer
    A. Both Techs A and B.
    Explanation
    Both Technician A and Technician B are correct. Technician A is correct in saying that all lug nuts must be torqued, which means they must be tightened to a specific level of tightness using a torque wrench. This is important for ensuring that the lug nuts are properly secured and will not loosen while driving. Technician B is correct in saying that all lug nuts must be properly sequenced. This means that when tightening the lug nuts, they should be tightened in a specific sequence or pattern, usually in a star or cross pattern, to ensure even distribution of torque and prevent warping of the wheel.

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  • 11. 

    Overinflation of a tire causes excessive wear on the outer edges of the tread.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Overinflation of a tire actually causes excessive wear on the center of the tread, not the outer edges. When a tire is overinflated, the center of the tread bears most of the weight and therefore wears down more quickly. This can lead to uneven tire wear and reduced traction.

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  • 12. 

    The DOT number on the tire tells the technician the exact date the tire was made to the minute.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The DOT number on the tire does not provide the exact date the tire was made to the minute. The DOT number actually provides information about the tire's manufacturer, plant location, tire size, and week and year of production. The last four digits of the DOT number indicate the week and year the tire was manufactured. Therefore, it does not provide the precise minute of production.

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  • 13. 

    The _________ seat is the edge of the rim that creates a seal between the tire bead and the wheel.

    • Rim

    • Bead

    • Wheel

    • Disc

    Correct Answer
    A. Bead
    Explanation
    The bead seat is the edge of the rim that creates a seal between the tire bead and the wheel. This is where the tire bead is securely held in place and prevents air from escaping. The bead seat ensures a tight fit between the tire and the wheel, allowing for proper inflation and safe driving.

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  • 14. 

    When inspecting tires on the car, you should check for all of the following except:

    • Wear

    • Inflation pressure

    • Punctures

    • Inner lining damage

    Correct Answer
    A. Inner lining damage
    Explanation
    When inspecting tires on a car, it is important to check for wear, inflation pressure, and punctures. However, inner lining damage is not typically checked during a tire inspection. The inner lining of a tire is not easily visible and is protected by the outer layers of the tire. Therefore, it is not necessary to specifically check for inner lining damage unless there are other visible signs of tire damage or issues.

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  • 15. 

    When a radial tire bulges on the sidewall, this means that the tire is underinflated all the time.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    A radial tire bulging on the sidewall does not necessarily mean that the tire is underinflated all the time. Bulging can occur due to various reasons such as overloading, impact damage, or manufacturing defects. Underinflation is just one possible cause of sidewall bulging, but it is not the only cause. Therefore, it is incorrect to assume that a bulging sidewall always indicates underinflation.

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  • 16. 

    When checking air pressure, always refer to the tire sidewall because this is the most accurate air pressure reading.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The explanation for the answer "False" is that the tire sidewall is not the most accurate source for checking air pressure. The recommended air pressure for a tire is usually provided by the vehicle manufacturer and can be found in the owner's manual or on a sticker located on the driver's side door jamb. The tire sidewall may have information about the tire size and maximum pressure, but it does not provide the recommended air pressure for the specific vehicle. Therefore, it is important to refer to the recommended air pressure provided by the manufacturer rather than relying on the tire sidewall.

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  • 17. 

    A tire designated with the letter T is for heavy trucks.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The given statement is false. A tire designated with the letter T is not specifically for heavy trucks. In the tire industry, the letter T typically refers to a tire that is designed for temporary use, such as a spare tire. Heavy trucks usually require specialized tires with higher load-carrying capacities, denoted by other letters such as LT (Light Truck) or ST (Special Trailer).

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  • 18. 

    The purpose of a drop center rim is that it:

    • Is lighter.

    • Allows for exact fit.

    • Allows for tire removal and fitting.

    • Allows for cooler wheels.

    Correct Answer
    A. Allows for tire removal and fitting.
    Explanation
    A drop center rim allows for tire removal and fitting. This is because the design of the rim features a lower center section, making it easier to mount and dismount tires. The drop center provides a space where the tire bead can be pushed down, allowing for the tire to be easily removed or fitted onto the rim. This design is commonly used in automotive and bicycle rims to facilitate tire maintenance and replacement.

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  • 19. 

    Technician A says that wheel offset is the distance from the hub mounting to the centerline of the wheel. Technician B says that rim width and diameter can also be stated in millimeters. Who is correct?

    • Tech A.

    • Tech B.

    • Both Techs A and B.

    • Neither Techs A nor B.

    Correct Answer
    A. Both Techs A and B.
    Explanation
    Both Technician A and Technician B are correct. Technician A accurately describes wheel offset as the distance from the hub mounting to the centerline of the wheel. Technician B is also correct in stating that rim width and diameter can be expressed in millimeters.

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  • 20. 

    More plies in a tire improve the ride quality of the tire.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The statement is false because more plies in a tire do not necessarily improve the ride quality. The ride quality of a tire depends on various factors such as the tire's tread pattern, compound, and overall design. While additional plies can enhance the tire's strength and durability, they may also make the tire stiffer and reduce its ability to absorb shocks and vibrations, resulting in a harsher ride. Therefore, the number of plies alone does not determine the ride quality of a tire.

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  • 21. 

    Technician A says that alloy wheels are called mags or magnesium wheels. Technician B says alloy wheels are lighter and dissipate heat more effectively. Who is correct?

    • Tech A

    • Tech B

    • Both Techs A and B.

    • Neither Tech A nor B.

    Correct Answer
    A. Both Techs A and B.
    Explanation
    Both Technician A and Technician B are correct. Technician A is correct in stating that alloy wheels are sometimes referred to as "mags" or magnesium wheels. This term is derived from the fact that early alloy wheels were often made from magnesium. Technician B is correct in stating that alloy wheels are lighter and dissipate heat more effectively compared to traditional steel wheels. Alloy wheels are made from a combination of aluminum and other metals, which makes them lighter and allows for better heat dissipation.

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  • 22. 

    Technician A says a tire with a Z speed rating has the highest possible speed rating. Technician B says that tire speed ratings give the legal cover for speeding. Who is correct?

    • Tech A.

    • Tech B.

    • Both Techs A and B.

    • Neither Techs A nor B.

    Correct Answer
    A. Tech A.
    Explanation
    Technician A is correct. A tire with a Z speed rating does have the highest possible speed rating. Speed ratings for tires indicate the maximum speed at which the tire can safely operate, and the Z rating signifies a top speed of over 149 mph. Technician B is incorrect in stating that tire speed ratings give legal cover for speeding. Speed limits are set by local laws and regulations, and exceeding them can result in fines or other penalties, regardless of the tire's speed rating.

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  • 23. 

    Technician A says that the tires on most passenger vehicles are hard solid rubber. Technician B says the tires on most forklifts are pneumatic tires. Who is correct?

    • Tech A

    • Tech B

    • Both Techs A and B.

    • Neither Tech A nor B.

    Correct Answer
    A. Neither Tech A nor B.
    Explanation
    Neither Technician A nor B is correct. Technician A is incorrect because most passenger vehicles have pneumatic tires, not hard solid rubber tires. Technician B is also incorrect because while some forklifts do have pneumatic tires, others have solid rubber tires. Therefore, both technicians are incorrect in their statements.

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  • 24. 

    Technician A says that a tire will increase or decrease 1 psi for every 10 degrees of temperature. Technician B says that if the vehicle has been driven to warm the tires, you must adjust the air pressure down to the manufacturer's recommended pressure. Who is correct? 

    • Tech A.

    • Tech B.

    • Both Techs A and B.

    • Neither Techs A nor B.

    Correct Answer
    A. Tech A.
    Explanation
    Technician A is correct. The air pressure in a tire will indeed increase or decrease by 1 psi for every 10 degrees of temperature change. This is due to the fact that as the temperature increases, the air molecules inside the tire gain energy and move faster, causing an increase in pressure. Conversely, as the temperature decreases, the air molecules lose energy and move slower, resulting in a decrease in pressure. Technician B's statement about adjusting the air pressure down to the manufacturer's recommended pressure after warming the tires is not mentioned in the question and therefore cannot be determined as correct or incorrect.

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Quiz Review Timeline (Updated): Apr 3, 2023 +

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

  • Current Version
  • Apr 03, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 09, 2014
    Quiz Created by
    Atahcpss
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