Deck 7: Tire and Wheel Diagnosis and Service

Question 1

________ stems are normally replaced when new tires are mounted on the rims.

A) TPMS-integrated
B) Screw-in
C) Rubber press-fit
D) Brass fitted

Answer 1

C

Question 2

If the tire pressure is incorrect, the technician must adjust the pressure using ________.

A) Compressed nitrogen
B) Compressed air
C) Either A or B
D) Neither A nor B

Answer 2

C

Question 3

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

A) repairs cannot be made to fix sidewall damage.
B) tread punctures of greater than 1/4" or 6 mm cannot be repaired.
C) a complete inspection of the tire, removed from the wheel, is required.
D) a tire plug by itself is an acceptable repair.

Answer 3

D

Question 4

A relatively good way to test for an air leak in a tire and wheel assembly is to:

A) spray the tire tread with a bottle of clean water.
B) spray the entire bead area on both sides of the wheel with clean water.
C) spray the tread area with a bottle of soapy water.
D) spray the tread area, both bead areas and the valve stem area with a bottle of soapy water.

Question 5

Two technicians are discussing tire puncture repair using a tire patch. Technician A says that you should use a tire buffer to smooth the area around the hole. Technician B says that a liquid buffing solution should be used to scrub the area just buffed. Who is correct?

A) Technician A
B) Technician B
C) Both Technician A and Technician B
D) Neither Technician A nor Technician B

Question 6

Technician A says that as long as a lug nut threads onto the wheel stud, it can be used on any type of wheel. Technician B says that it's critical that both wheel and hub (or flange) mounting surface be clean and free of dirt and mud. Who is correct?

A) Technician A
B) Technician B
C) Both Technician A and Technician B
D) Neither Technician A nor Technician B

Question 7

________ occurs when a part of the wheel assembly becomes bent or was manufactured improperly.

A) Imbalance
B) Run in
C) Run out
D) Wheel offset

Question 8

Failure to properly position the tire in the rim's drop-center section before attempting to dismount the tire can result in _________.

A) Permanent tire bead damage
B) Ripping the tire bead
C) Being unable to remove the tire
D) All of the above

Question 9

A young technician often breaks off the first one or two wheel studs on the first wheel he or she is removing on a new project vehicle. Technician A says to first spray all of the lug nuts with penetrating liquid. Technician B says to be sure the impact wrench is set for the correct rotation (e.g., counter-clockwise). Who is correct?

A) Technician A
B) Technician B
C) Both Technician A and Technician B
D) Neither Technician A nor Technician B

Question 10

Rust can often cause the wheel to become stuck to the axle flange or hub due to the snug fit between the wheel and hub (or axle flange). When this happens, Technician A says to first notify your supervisor and seek assistance. Technician B says to first use an oxyacetylene torch to loosen the rust's grip on the parts. Who is correct?

A) Technician A
B) Technician B
C) Both Technician A and Technician B
D) Neither Technician A nor Technician B

Question 11

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?

A) Tech A
B) Tech B
C) Both Techs A and B
D) Neither Tech A nor B

Question 12

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.

Question 13

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

Question 14

Paying close attention to the wheels and tires can also assist in identifying problems with other vehicle systems, particularly in ________ and ________ systems.

A) Steering; ignition
B) Steering; suspension
C) Suspension; ignition
D) Ignition; fuel

Question 15

Tires on many vehicles are inflated to about ________ pounds per square inch (psi).

A) 16
B) 24
C) 32
D) 40

Question 16

The ______ is inspected to ensure that it is above the built-in wear indicators, which indicate that the tire is at the end of its legal life and should be replaced.

A) Wear height
B) Wheel alignment
C) Tread depth
D) None of the above

Question 17

The tire pressure should be regularly checked and adjusted on vehicles that do not have a(n) ________.

A) EGR
B) ECM
C) MIL
D) TPMS

Question 18

________ is most commonly a result of the tires set with excessive toe-in or toe-out.

A) Groove
B) Friction
C) Feathering
D) Balding

Question 19

________ is the appearance of dips around the edge of the tread, usually on just one side of the tire.

A) Dipping
B) Friction
C) Feathering
D) Cupping

Question 20

________ wear indicates that the vehicle has been driven with the tires consistently underinflated, or the driver regularly corners the vehicle at excessive speeds.

A) Center
B) Edge
C) Cupping
D) Feathering

Question 21

________ wear is when the ribs in the middle of the tire wear faster than those on each side.

A) Edge
B) Center
C) One-sided
D) Cupping

Question 22

Technician A says the appearance of tire wear indicator bars indicate that tire pressure is low and therefore pressure should be increased. Technician B says tire indicator bars are a quick visual warning that tire tread is worn down to the unserviceable level and the tires should be replaced. Who is correct?

A) Technician A
B) Technician B
C) Both Technician A and Technician B
D) Neither Technician A nor Technician B

Question 23

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

A) wear.
B) inflation pressure.
C) side wall damage.
D) inner lining damage.

Question 24

Technician A claims that there are only two car/light truck tread pattern designs: street and off-road. Technician B claims the most common car/light truck tread pattern designs are directional, nondirectional, symmetric, asymmetric, and directional and asymmetric. Who is correct?

A) Technician A only
B) Technician B only
C) Both Technician A and Technician B
D) Neither Technician A nor Technician B

Question 25

Technician A says that camber used to be a heavy tire-wearing angle when tires were the bias-ply type and had stiff sidewalls. Technician B says tires can tolerate huge amounts of improper camber much better than before. Who is correct?

A) Technician A
B) Technician B
C) Both Technician A and Technician B
D) Neither Technician A nor Technician B

Question 26

Technician A says that observing tire wear patterns can assist in identifying problems in the steering system. Technician B says that observing tire wear patterns can also assist in identifying problems in the suspension system. Who is correct?

A) Technician A
B) Technician B
C) Both Technician A and Technician B
D) Neither Technician A nor Technician B

Question 27

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

A) ensure the tire and wheel will form a perfect seal to prevent air leakage.
B) transfer all the forces between the tire and wheel without slipping or chafing.
C) prevent the tire from turning on the rim.
D) All the answers listed

Question 28

Manufactures recommend that tires are rotated at:

A) every oil change.
B) 1000 miles.
C) every transmission service.
D) 10,000 miles.

Question 29

Manufacturers recommend that tires are rotated at:

A) every oil change.
B) every 1,000 miles.
C) every transmission service.
D) every 20,000 miles.

Question 30

All of the following are true about "directional" tires; EXCEPT:

A) Tires with directional tread patterns should always rotate in the direction indicated only.
B) An arrow on the directional tire sidewall usually indicates the direction of the tire rotates
C) Directional tires are often rotated from front to rear or vice-versa
D) Directional tires should be rotated so they turn the opposite direction as before.

Question 31

All of the following statements about rotating tires is true; EXCEPT:

A) rotation promotes more uniform tire wear.
B) rotating tires can help extend tire life.
C) rotating tires increases fuel economy.
D) rotating tires increases maximum vehicle speed.

Question 32

Which of the following four-tire rotation patterns is not commonly specified?

A) Round about
B) Forward cross
C) Rearward cross
D) X pattern

Question 33

Tech A says that directional tires cannot be rotated. Tech B says that all old wheel weights should be removed before balancing a tire. Who is correct?

A) Tech A
B) Tech B
C) Both A and B
D) Neither A nor B

Question 34

Tires can be balanced by the __________ method.

A) Static
B) Dynamic
C) Road force
D) All the above

Question 35

________ tires have very short sidewalls and can be difficult to remove and install.

A) Casing
B) High-profile
C) Low-profile
D) Winter

Question 36

The ________ on the tire changer can hold the rim by grasping it from the outside or the inside.

A) Bead breaker
B) Dismount tool
C) Turntable jaws
D) Torsional damper

Question 37

________ is when the red dot is lined up with the rim's lowest point.

A) Light matching
B) Weight matching
C) Match mounting
D) Heavy mounting

Question 38

________ is when the yellow dot is matched up with the rim's heaviest point.

A) Match mounting
B) Weight matching
C) Light matching
D) Heavy mounting

Question 39

________ occurs when a spot on either the inside or the outside of the tire's centerline is heavy.

A) Dynamic steering
B) Dynamic variation
C) Dynamic balance
D) Dynamic imbalance

Question 40

When balancing wheels with either Dynamic or Road Force Balancers, Technician A says it is really important to follow the instructions provided with the particular balancer you're using. Technician B says that when rebalancing a wheel, if it is out of balance, it is best to remove the old weights and recheck the balance before adding new weights. Who is correct?

A) Technician A
B) Technician B
C) Both Technician A and Technician B
D) Neither Technician A nor Technician B