310S Brake Systems

Question 1

What is the purpose of the brake master cylinder?

Accepted Answer

To convert mechanical force from the brake pedal into hydraulic pressure distributed to the wheel brakes

Answer

To store brake fluid for the system

Answer

To boost the driver's braking force

Answer

To regulate antilock brake operation

Question 2

What does the brake pedal feel like when there is air in the hydraulic brake system?

Accepted Answer

Soft and spongy

Answer

Hard and high

Answer

Pulsating

Answer

Normal with no change

Question 3

What is the purpose of the proportioning valve in a brake system?

Accepted Answer

To reduce hydraulic pressure to the rear brakes to prevent premature rear wheel lockup during braking

Answer

To increase front brake pressure during panic stops

Answer

To balance pressure between the left and right brakes

Answer

To maintain residual pressure in the brake lines

Question 4

What causes brake fade during repeated hard braking?

Accepted Answer

Excessive heat reducing the friction coefficient of brake pads and potentially boiling brake fluid

Answer

Low brake fluid level

Answer

Worn brake pad sensors

Answer

A failing ABS module

Question 5

What is the minimum acceptable brake pad thickness for most vehicles according to Canadian standards?

Accepted Answer

2 mm (excluding backing plate)

Answer

1 mm

Answer

4 mm

Answer

6 mm

Question 6

What does a pulsating brake pedal during normal braking typically indicate?

Accepted Answer

Brake rotor lateral runout (thickness variation or warping)

Answer

Air in the brake lines

Answer

Worn brake pad friction material

Answer

A failing brake booster