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Diagnosing and Repairing Disc Brakes




1.What can result from restricted caliper movement along the guide pins?
Uneven brake pad wear.
Uneven brake shoe wear.
Brake drag.
Brake vibration.


2.When servicing sliding calipers, it is important to:
Clean the machined surfaces.
Lubricate the machined surfaces.
Sand the machined surfaces.
None of the above.


3.Which of the following can be used in the brake system if brake fluid is unavailable?
Motor oil.
Transmission fluid.
Power steering fluid.
None of the above.


4.What must be done if fluid is escaping from the rear of the master cylinder?
The master cylinder seals must be replaced.
The bolts holding the master cylinder in place must be tightened.
The master cylinder must be replaced.
The copper sealing washer must be replaced.


5.What can be placed on the metal backing of brake pads to eliminate some squealing noises?
Brake fluid.
High-temperature lubricant.
Antisqueal compound.
Brake pad glaze.


6.When servicing disc brake pads and calipers, the caliper:
Should be supported with wire.
Should be supported by the brake hose.
Should be supported by another technician.
Needs no support.


7.Burnishing requires which of the following techniques?
Machining the brake rotors.
Machining the brake linings.
Several "panic stop" brake applications from 30 mph.
Several brake applications, starting gently and then increasing brake pressure as the vehicle slows from 50 mph.


8.Which of the following can be used to clean brake parts?
Brake cleaning solvent.
Clean brake fluid.
Denatured alcohol.
All of the above.


9.If machining grooves are left in the surface of a brake rotor, the brake pads will wear prematurely.
True.
False.


10.Which bearing color indicates new bearings should be installed?
Red.
Blue.
Black.
White.

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