Wheel and tire 2

Overinflation

A tire that shows maximum wear on the outside edges of the thread while showing little or no wear in the center of the thread was probably caused by _____.

Lateral runout

A tire that wobbles from side to side is said to have ____.

A only

Direct tire pressure monitoring system's are being discussed [TPM]. Technician A says the tire pressure sensor is a single unit with a built in battery that measures tire pressure and temperature and transmits A signal and ID number for that particular tire. Technician B says The system does not require a relearn procedure after tires have been rotated or replaced because it knows the ID of each tire. Who is correct?

ABS wheel speed sensor's

Indirect tire pressure monitoring systems use information from ______ to detect low tire pressure.

Dial indicator

Lateral and radial wheel runout is measured with a ______.

On the tire placard

Most information about a cars tires can be found ___.

65 %

On a P215/65 R15 89H tire, what is the profile (aspect ratio) of the tire ???

215 mm

On a P215/65 R15 89H tire, what is the width of the tire ??

Aspect ratio

Profile is another name for a tires ___.

None

Technician A says rim diameter is determined by measuring across the rim between flanges. Technician B says rim width is measured across the bead seating areas from the top to the bottom of the wheel. Who is correct???

Profile (aspect ratio)

The section width is divided by the section height is the ____ of the tire.

Both

Tire sidewalk markings are being discussed. Technician A says maximum load, traction, and wear ratings are indicated. Technician B says maximum inflation pressure, tread plies, and sidewall plies are indicated. Who is correct?

Load capacity

What is not a factor rated by the UTQG rating system?

Both

technician A says an incorrect wheel can affect tire clearance, or speedometer and odometer calibrations. Technician B says The wrong size wheel can also affect the antilock brake system. who is correct?

Race

whenever a tapered roller bearing is replaced, it's ______ must be replaced with it.

Unbolt the air valve/ sensor assembly and allow it to drop into the tire

Before dismounting a tire with a TPM sensor, _______.

A only

Technician A says modern vehicles use tubless tires. Technician B only heavy duty trucks use pneumatic tires. Who is correct?

An arrow printed on the sidewall

On a directional type tire, the direction of the rotation is indicated by _____.

70% of 205 millimeters

On a tire with a designation of P205/70R14, the distance between the rim and the top of the tire is ___.

A only

Technician A says an incorrect tire and wheel size can affect bearing life. Technician B says changing tire and wheel sizes does not affect antilock brake systems. Who is correct?

Both

Technician A says an uneven rumble or a grinding sound indicates possible wheel bearing problems. Technician B says wheel bearings should be checked for wear and looseness by grasping the top and bottom of the tire and trying to wobble the wheel and tire back and forth. Who is correct?

B only

Technician A says front bearing assembly locknuts for RWD vehicles are typically heavily torqued to maintain the bearing adjustment. Technician B says the axle nut for a FWD front wheel bearing assembly is often staked in place. Who is correct?

Both

Technician A says front wheel bearings on a typical FWD car are pressed in and out of the steering knuckle. Technician B says the rear wheel bearings on a typical FWD car are often serviced in the same way as the front wheel bearings for an RWD car. Who is correct??

B only

Technician A says many modern vehicles are equipped with bias ply or belted-bias ply tires. Technician B says modern vehicles are equipped with radial ply tires. Who is correct?

B only

Technician A says nylon cord tires generally give a smoother ride than rayon, but do not have the Inherent strength needed to cope with long high speed runs. Technician B says polyester and fiberglass tires offer many of the best qualities of rayon and nylon, but without the disadvantages. Who is correct?

B only

Technician A says radial ply tires are more rigid in the sidewall area than bias ply tires. Technician B says the belts in a radial tire restrict tread motion during contact with the road, thus improving tread life and traction. Who is correct??

A only

Technician A says the more aggressive the tread, the more noise it will make. Technician B says softer tires typically make more noise and wear longer. Who is correct?

B only

Technician A says the proper inflation pressure is printed on the tire sidewall. Technician B says the proper inflation pressure is listed on the tire placard on the drivers door jamb. Who is correct???

Both

Technician A says tire traction ratings are indicated with A,B, or C. Technician B says tire temperature ratings are indicated with an A,B, or C. Who is correct???

Both

Technician A says tire tread patterns may be directional or nondirectional. Technician B says tire tread patterns may be symmetric or asymmetric. Who is correct?

B only

Technician A sets tire pressure when the tires are hot. Technician B sets tire pressure when the tires are cold. Who is correct ?

B only

Technician a says a vehicle can be driven indefinitely on a high-pressure mini spare tire. Technician B says using a space saver spare tire can cause the ABS system to set a code. Who is correct?

Both

Technician a says higher aspect ratios provide a softer ride because they will deflect more over irregular surfaces and under heavy loads. Technician B says shorter side wall heights demand stiffer sidewalls. Therefore, tires with a low aspect ratio have a harsher ride. Who is correct?

B only

Technician a says radial tires can be mixed with other types of tires on the same vehicle. Technician B says tires should be replaced with ones of the same or higher speed rating. Who is correct?

Lug nut torque

What property is not printed on the tire placard?

Roller type

What type of bead loosened should be used when dismounting run flat tires?

High speed driving

What will not cause uneven tire wear?

In the center of the thread

Where does an overinflated tire show it's wear?

Tire pressure service

Which of the following does not require a TPM warning system reset/relearn procedure?

Anaerobic self inflating

Which of the following is not a type of run flat tire ?

Copper mesh

Which of the following materials is not used in the body and belts of radial tires?

C

Which of the following statements about sidewall markings is correct? A. Aspect ratio or profiling indicates a grading for tread life B. Recommended air pressure and safety warnings are indicated C. The tires maximum safe inflation pressure and load are indicated D. Section width is the distance between the tread and the bead

D

Which of the following statements is not correct?? A. Belts are reinforcing materials that encircle the tire under the tread B. The casing of the tire consists of layers of rubber-impregnated cords, called plies C.most tread patterns are designed to work well on both wet and dry roads D. The bead is the decorative pattern at the outer edge of the tread

C

Which of the following statements is not correct???? A. a cold patch should be stitched to the inner surface of the tire carcass B. A tread puncture that is less than one-quarter inch in diameter is repairable C. Wheel balancing is required only when new tires are installed D.punctures should be repaired from inside the tire

Their lower unsprung weight improves handling

Why are lightweight aluminum wheels superior to heavier stamped steel wheels?