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Exam 3: Related Systems: Tire, Wheels, Bearings, and Suspensions

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Question 31

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Tire construction is being discussed. Technician A says the carcass of a tire consists of steel beads around the rim and layers of cords or plies that are bonded together to give the tire its shape and strength. Technician B says casing is the layer of rubber that contacts the road and contains a distinctive pattern to provide the desired traction. Who is correct?

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

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Question 32

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What determines the tread contact patch's friction ability?

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The tread contact patch's fric...

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Question 33

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Define geometric centerline.

Technician A says that too much torque on the lug nuts can warp a brake rotor. Technician B says that it is better to add additional torque to the lug nuts to prevent the wheel from falling off. Who is correct?

The belts of cords are placed parallel to the tread on a radial ply design.

Technician A says a vehicle that has the tread wear indicators showing completely will likely hydroplane on wet roads. Technician B says the same condition should not affect braking on dry pavement. Who is correct?

The cords in a radial ply tire run at _____ degrees to the tread.

The P-metric system of measurement is an alpha-numeric size identification for tires.

A vehicle pulls towards the left while driving. Which of the following would be the most likely cause?

What is the most likely cause of a vehicle pulling or drifting to one side when the brake is off?

The tire placard is always mounted in the glove compartment.

The vehicle manufacturer's recommended inflation pressures are usually more than the maximum cold inflation pressure.

Why is the caster on the rear wheels usually zero? What situation may require some rear wheel caster?

Excessive runout can contribute to pedal ___________.

To inspect loaded ball joints that do not have wear indicators, the technician must:

Road force balancers can detect lateral rolling forces in tires that result in a tire pull as well as radial and lateral runout.

Each of the following is part of the vehicle's gross vehicle weight EXCEPT:

Because of the nonflexible sidewalls, bias ply tires give the best braking performance.

When the plies are parallel to the tire's radius, then the tire is of what type construction?

Technician A says if you are troubleshooting a brake pull problem and cannot pinpoint the cause, try driving the car in reverse and applying the brakes. Technician B says if the car pulls in opposite directions while braking in forward and reverse, look closely for loose or broken suspension and steering components. Who is correct?