JH. Automotive Tech. 7th Edition Chapter 98 Quiz A.

What is the primary function of the shoe support pads on a drum brake backing plate?

• To provide a mounting surface for the brake shoes

• To align the brake shoes with the center of the friction surface

• To act as a dust and water shield

• To serve as a lip that strengthens the backing plate

How many shoe support pads are typically found on a drum brake backing plate?

• 2

• 4

• 6

• 8

What is the purpose of a labyrinth seal in a drum brake system?

• To reduce noise

• To prevent water entry

• To hold the brake shoes in place

• To adjust the brake shoes

Which component in a drum brake system is responsible for transferring hydraulic pressure to the brake shoes?

• The master cylinder

• The brake drum

• The adjuster assembly

• The wheel cylinder

What is the self-energizing action in a dual-servo brake system?

• The action of the brake pedal

• The movement of the wheel cylinder pistons

• The rotation of the drum that creates a servo action

• The adjustment of the brake shoes

Which shoe in a dual-servo brake system undergoes more stress and has a lining that extends nearly the full length of the shoe?

• Secondary shoe

• Primary shoe

• Both shoes equally

• Neither shoe

What is the consequence of a wheel cylinder without piston stops?

• The wheel cylinder may come apart

• The brakes will lock up

• The brake shoes will not adjust

• The brake drum will overheat

What are the two main methods used to mount brake linings to the brake shoe?

• Bonding and welding

• Riveting and bonding

• Screwing and riveting

• Welding and screwing

What is the effect of a frozen starwheel adjuster on drum brakes?

• It causes the brakes to become more efficient

• It has no effect on the brakes

• It can cause the brakes to lock up

• It makes the brakes easier to adjust

What is the role of the adjuster lever in a drum brake system?

• To apply the brake shoes to the drum

• To self-adjust the brake shoes

• To hold the brake shoes in place

• To transfer hydraulic pressure