Brakes ASE Chapter 46

Which tool is used to measure the lateral runout of a rotor?

• Vernier caliper

• Inside micrometer

• Dial indicator

• Depth micrometer

Tech A says that some vehicles use fixed calipers. Tech B says that some vehicles use sliding/floating calipers. Who is correct?

• Tech A

• Tech B

• Both A and B

• Neither A nor B

All of the following can cause brake pedal pulsation, EXCEPT:

• warped rotors

• ABS operation

• rotor parallelism

• low brake fluid

Tech A says that the disc brake rotor is the main rotating part of the disc brake system. Tech B says that the disc brake pads are located in the disc brake caliper only. Who is correct?

• Tech A

• Tech B

• Both Techs A and B

• Neither Tech A nor B

Which of the following is/are LEAST likely to be used to reduce disc brake squeal?

• Shims

• Spacers

• Axle grease

• Bendable tangs

Diagnosing a drum brake concern will always be as simple as stepping on the brake pedal without moving the vehicle and feeling the level that the brake pedal sinks to.

• True

• False

A dial indicator may be used for measuring rotor:

• thickness

• runout

• hot spots

• groove wear

If the vehicle is safe to drive, it is common practice to test-drive the vehicle to verify the customer concern.

• True

• False

If a retracting tool is not available, which of the following can be used to retract the pistons in a caliper with non-integrated parking brakes?

• a pair of vice grips

• slip joint pliers

• a c-clamp

• a soft-faced mallet

One safe way to test whether a braking problem is at the front or rear brakes is to drive at a low speed and:

• lightly apply the service brakes

• lightly apply the parking brake

• repeatedly tap the service brakes

• pull hard on the parking brake lever