Brake System Quiz

What could cause a vehicle to pull to one side during braking?

• Air in the brake lines

• Uneven tire wear

• A stuck caliper

• A worn master cylinder

Which brake component converts hydraulic pressure into mechanical force?

• Caliper piston

• Brake pedal

• Brake shoes

• Wheel cylinder

What is the most common cause of brake pedal pulsation?

• Air in the brake lines

• Excessive rotor runout

• Worn brake pads

• Contaminated brake fluid

A spongy brake pedal is MOST likely caused by:

• Low brake fluid level

• Air in the brake lines

• Faulty ABS sensor

• Worn brake pads

Which tool is used to measure rotor thickness?

• Dial indicator

• Vernier caliper

• Micrometer

• Feeler gauge

What is the purpose of a proportioning valve?

• To adjust brake pressure based on load

• To prevent rear-wheel lockup during hard braking

• To maintain ABS operation

• To balance hydraulic pressure in dual-circuit systems

What should be done if a rotor is found to be below minimum thickness?

• Resurface it

• Replace it

• Adjust the caliper

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

• To delay rear brake application

• To delay front brake application

• To balance pressure between the two circuits

• To prevent excessive pressure in the brake lines

What type of brake fluid is hygroscopic and absorbs moisture from the air?

• DOT 3

• DOT 5

• DOT 5.1

• All brake fluids are hygroscopic

What is the primary cause of a sinking brake pedal when the vehicle is stopped?

• Low brake fluid level

• A leaking master cylinder

• Warped rotors

• Air in the brake lines