Servicing Wheels And Tires

25 Questions | By Atahcpss | Last updated: Mar 21, 2022 | Total Attempts: 2466

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Chapter 27

Questions and Answers

1.

True or False. A tire valve is a specially designed opening that allows a tire to be inflated and then automatically closes to prevent air from escaping.
- A.
  
  True
- B.
  
  False
2.

During cornering, centrifugal force acts on a vehicle to produce:
- A.
  
  Under-steer.
- B.
  
  Side force.
- C.
  
  Over-steer.
- D.
  
  Slip angle.
3.

True or False. A tire with an A temperature rating has the best temperature resistance.
- A.
  
  True
- B.
  
  False
4.

True or False. Over inflation of a tire causes excessive wear on the outer edges of the tread.
- A.
  
  True
- B.
  
  False
5.

True or False. Tires and wheels must be balanced statically and dynamically.
- A.
  
  True
- B.
  
  False
6.

True or False. When checking air pressure, always refer to the tire sidewall, because this is the most accurate air pressure reading.
- A.
  
  True
- B.
  
  False
7.

True or False. When a radial tire bulges on the sidewall, this means that the tire is underinflated all the time.
- A.
  
  True
- B.
  
  False
8.

True or False. The DOT number on a tire tells the technician the exact date the tire was made, to the minute.
- A.
  
  True
- B.
  
  False
9.

Technician A says that paying attention to tires and wheels can also assist in identifying problems in the steering system. Technician B says that paying attention to tires and wheels can also assist in identifying problems in the suspension system. Who is correct?
- A.
  
  Tech A
- B.
  
  Tech B
- C.
  
  Both Techs A and B
- D.
  
  Neither Tech A nor B
10.

The height of the center of gravity is determined by the ___________ of the center of the mass above the road surface.
- A.
  
  Height
- B.
  
  Depth
- C.
  
  Width
- D.
  
  Length
11.

The _________ seat is the edge of the rim that creates a seal between the tire bead and the wheel.
- A.
  
  Rim
- B.
  
  Bead
- C.
  
  Wheel
- D.
  
  Disc
12.

The tire must be an exact fit on the rim to:
- A.
  
  Ensure the tire and rim will seal the air in a tubeless tire.
- B.
  
  Transfer forces between the tire and wheel without slipping or chafing.
- C.
  
  Prevent the tire from turning on the rim.
- D.
  
  All the above
13.

There are three different wheel offsets: zero offset, positive offset, and negative offset. Technician A says that negative offset places the hub mounting closer to the brake side of the wheel. Technician B says that negative offset is farther away from the brake side of the wheel. Who is correct?
- A.
  
  Tech A
- B.
  
  Tech B
- C.
  
  Both Techs A and B
- D.
  
  Neither Tech A nor B
14.

Technician A says that all lug nuts must be torqued. Technician B says that all lug nuts must be properly sequenced. Who is correct?
- A.
  
  Tech A
- B.
  
  Tech B
- C.
  
  Both Techs A and B
- D.
  
  Neither Tech A nor B
15.

The principle that allows your car to stop is:
- A.
  
  Rubber in the tires
- B.
  
  Friction.
- C.
  
  Centrifugal force.
- D.
  
  Ply rating.
16.

The part of the tire that makes contact with the road is the:
- A.
  
  Cords.
- B.
  
  Plies.
- C.
  
  Inner liner.
- D.
  
  Tread.
17.

A green valve stem cap on newer tires means that the tires are:
- A.
  
  Green design.
- B.
  
  Filled with nitrogen.
- C.
  
  Filled with helium.
- D.
  
  Filled with hydrogen.
18.

Technician A says that 98% of the tires sold are of the radial design. Technician B says that 98% of the tires sold are of the bias ply design. Who is correct?
- A.
  
  Tech A
- B.
  
  Tech B
- C.
  
  Both Techs A and B
- D.
  
  Neither Tech A nor B
19.

The aspect ratio of a tire is:
- A.
  
  The width of a tire.
- B.
  
  The rim diameter.
- C.
  
  How much air to inflate the tire to.
- D.
  
  Ratio of height to width.
20.

Technician A says some tire pressure monitoring systems 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 tire pressure. Who is correct?
- A.
  
  Tech A
- B.
  
  Tech B
- C.
  
  Both Techs A and B
- D.
  
  Neither Tech A nor B
21.

Technician A says run-flat tires may be driven continually at zero inflation pressure. Technician B says some run-flat tires have sidewall reinforcements. Who is correct?
- A.
  
  Tech A
- B.
  
  Tech B
- C.
  
  Both Techs A and B
- D.
  
  Neither Tech A nor B
22.

When inspecting tires on the car, you would check for all of the following EXCEPT:
- A.
  
  Wear.
- B.
  
  Inflation pressure.
- C.
  
  Punctures.
- D.
  
  Inner lining damage.
23.

Technician A says that tire pressures need to be checked when cold. Technician B says that tire pressures need to be checked before they are driven less than 1 mile. Who is correct?
- A.
  
  Tech A
- B.
  
  Tech B
- C.
  
  Both Techs A and B
- D.
  
  Neither Tech A nor B
24.

Tires can be balanced by the __________ method.
- A.
  
  Static
- B.
  
  Dynamic
- C.
  
  Road force
- D.
  
  All the above
25.

Technician A says that a tire will increase or decrease 1 psi for each 10°F 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?
- A.
  
  Tech A
- B.
  
  Tech B
- C.
  
  Both Techs A and B
- D.
  
  Neither Tech A nor B