Disc Brakes

What part causes the disc brake caliper piston to retract when the brakes are released?

• Return (retracting) spring

• The rotating rotor (disc) that pushes the piston back

• The square cut O-ring

• Caliper bushings

Slots are often used in brake pads because they ___________.

• improve braking performance

• increase brake life

• reduce brake noise

• reduce brake fade    

Which of the following is NOT a component of a disc brake system?

• Backing plate

• Splash shield

• Caliper

• Brake pads

Technician A says that riveted disc brake pads are often quieter than bonded disc brake pads. Technician B says integrally molded disc brake pads are molded into holes in the steel backing of the pads. Which technician is correct?

• Tech A

• Tech B

• Both Tech A and Tech B

• Neither Tech A nor Tech B

Two technicians are discussing the reason that the brake fluid level in the master cylinder drops. Technician A says that it may be normal due to the wear of the disc brake pads. Technician B says that this is part of the wear compensation feature of disc brakes. Which technician is correct?

• Tech A

• Tech B

• Both Tech A and Tech B

• Neither Tech A nor Tech B

A four piston caliper is used in what type of caliper design?

• Floating

• Fixed    

• Sliding

• Either fixed or floating

Disc brakes have many advantages, some of which are listed below. Which of the following statements does NOT apply to disc brakes?

• They are self-cleaning.

• They dissipate heat faster

• They resist fading

• They are self-energizing.

The outboard shoe of a single piston caliper is pushed against the rotor by the ________.

• caliper mounting

• piston

• caliper body

• push rod

Single-piston type disc brakes are adjusted by ________.

• star wheel adjusters

• self-adjusting mechanisms

• torquing the guide pins

• piston movement through the seal

Which of the following is NOT a part of a brake caliper assembly?

• Cup seal

• Anti-rattle spring or clip

• Piston

• Dust boot