Exam 45: Tires and Wheels

A(n)_________ problem will result in a tire that shows maximum wear on the outside edges of the tread while showing little or no wear in the center of the tread.

Which condition will NOT cause uneven tire wear?

The profile is another name for a tire's ______.

Technician A says an incorrect wheel can affect tire clearance as well as speedometer and odometer calibrations. Technician B says the wrong size wheel can affect the antilock brake system. Who is correct?

Technician A says rim diameter is determined by measuring across the rim between the 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?

When replacing tires, renew the valve stems only if they are leaking.

Technician A says wheel tramp is caused by dynamic imbalance. Technician B says wheel shimmy is caused by static imbalance. Who is correct?

When purchasing replacement tires, what wheel specifications must match the OEM wheels?

Some vehicles have left-hand threaded wheel studs and nuts on the driver's side of the vehicle.

The front bearing arrangement used on most vehicles is rarely serviceable.

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

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?

Which of the following statements is false?

Technician A uses a head-type plug to repair a tire puncture in the tread area of a tire. Technician B injects tire sealant through the valve stem to repair a tire puncture in the sidewall. Who is correct?

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

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?

When 2/32 inch (1.58 mm)is indicated on a tread depth gauge, the tire should be replaced.

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?

Whenever a tapered roller bearing is replaced, its ______ must be replaced, too.

In a P195/70 R14 79H tire, the number 79 is the ____________________ rating of the tire.