Exam 52: Disc Brakes

To reduce weight, ____________________ rotors are made of two different materials, usually cast iron and steel.

A typical floating caliper housing is designed with one caliper piston.

A vibration or pulsation in the brake pedal when the brakes are applied is usually caused by ______.

Technician A uses a C-clamp to push the piston back into its bore when replacing pads. Technician B supports the caliper using safety wire while servicing the brakes. Who is correct?

Rubber insulators and caliper pins should be lubricated with ____________________ dielectric compound

Electronic brake pad wear warning systems are being discussed. Technician A says the pad wear sensors are wired in parallel. Technician B says the wear sensors are wired in series. Who is correct?

Identify three causes of a hard brake pedal.

Unidirectional rotors have ____________________ cooling fins.

On actuating calipers, the piston may have to be rotated before the _____ is (are)installed.

Disc brakes require more force than drum brakes to achieve the same braking effort.

Most manufacturers recommend that the caliper mounting pins and their bushings be replaced each time the caliper is removed.

____________________ caliper disc brakes do not move when the brakes are applied.

Technician A uses compressed air at 150 psi to remove the piston from the caliper bore. Technician B uses special internal expanding pliers to remove pistons from caliper bores. Who is correct?

What component in the brake caliper acts as a retracting mechanism for the piston when hydraulic pressure is released?

A(n)____________________ rotor has the hub and the rotor cast as a single unit.

Brake rotors should be checked for _____.

What is lateral runout?

The ball-and-ramp-type parking brake actuator is found on which vehicle make?

Which of the following is NOT associated with a pedal pulsation problem?

Which statement is false?