IT17 - Brake System Quiz

Following replacement of the brake pads on a four-wheel disc-brake-equipped vehicle, the master cylinder reservoir is found to be overfilled and brake fluid is dripping from it. Which is the most likely cause?

• The brake calipers were bled improperly.

• The master cylinder port is clogged and causing brake fluid to back up.

• The reservoir is cracked and leaking brake fluid.

• The reservoir was not siphoned before the pistons were compressed.

While performing a road test on a vehicle with a brake concern, the technician notices that holding pressure on the brake pedal causes it to ease to the floor. Which component is most likely the problem?

• drum

• rotor

• brake booster

• master cylinder

Brake rotor runout can be checked by using a/an:

• dial indicator.

• feeler gauge.

• outside micrometer.

• snap gauge.

When bleeding the brake system, which wheel should be bled first if a shop manual is unavailable for reference?

• left

• left

• right front

• right rear

How should drum brakes be cleaned before repairs?

• by blowing clean with an air nozzle

• by washing with an aerosol cleaner

• by washing with an oil-based cleaner

• by washing with a water-based cleaner

Technician A says some brake wheel cylinders are bolted to the backing plate. Technician B says wheel cylinder dust boots are filled with fluid to lubricate the piston. Who is right?

• A only

• B only

• Both A and B

• Neither A nor B

Technician A says that some front disc caliper pistons may be retracted using a "C" clamp. Technician B says that some rear disc caliper pistons may need a special tool to retract the piston. Who is right?

• A only

• B only

• Both A and B

• Neither A nor B

A technician notices brake fluid dripping from a brake drum before repairs. Which is most likely leaking inside the drum?

• axle seal

• backing plate

• caliper piston

• wheel cylinder

When replacing the front brake pads on a vehicle, the technician finds the inside pad is worn down to the metal, while the outside pad looks new. Which is the most likely problem?

• split brake hose

• sticking caliper piston

• frozen caliper slide pin

• missing hold-down spring

The metal components that come with a new set of brake pads are referred to as:

• retainers

• Hardware

• pad holders

• pad keepers