Question 1

When the rear brake shoes are replaced, a return spring breaks from age and rust: Technician A says only the broken spring should be replaced.Technician B says all of the brake springs should be replaced.Who is correct?

Accepted Answer

It is recommended to replace all of the brake springs as they are most likely of similar age and condition, and could potentially also break soon after the repair. This is a preventative measure to ensure the brakes will function properly and safely.

Question 2

An out-of-round brake drum can cause a brake pedal .........

Accepted Answer

pulsation

Question 3

The service brake pedal is low but firm and the parking brake does not hold the vehicle in place: Which is the most likely cause?

Accepted Answer

B

Question 4

Full-floating rear differentials may require removing the ........to remove the drums to inspect the brakes.

Accepted Answer

The answer of Full-floating rear differentials may require removing the...

Question 5

The parking brake does not lock the rear wheels even if fully applied: Technician A says excessive shoe-to-drum clearance may be the cause.Technician B says rusted self-adjusters may be the cause.Who is correct?

Accepted Answer

Both technician A and B are correct. Excessive shoe-to-drum clearance can cause the parking brake to not lock the rear wheels even if fully applied. Rusted self-adjusters can also cause this issue by preventing the shoes from properly adjusting to the drum.

Question 6

........accumulation between the shoes and drum can be a source of brake noise.

Accepted Answer

The answer of ........accumulation between the shoes and drum can...

Question 7

Technician A says to correct a brake pulsation concern the rear drums may need to be machined.Technician B says and on-car brake lathe can be used to correct out-of-round drums.Who is correct?

Accepted Answer

The answer of Technician A says to correct a brake...

Question 8

A vehicle with rear drum brakes has a grinding noise when the brakes are applied: Technician A says excessive dust buildup in the drum brake can cause this.Technician B says worn rear brake linings can cause this.Who is correct?

Accepted Answer

Both technicians are correct. Excessive dust buildup in the drum brake can cause a grinding noise, as well as worn rear brake linings. Both of these issues can affect the performance of the braking system and should be addressed promptly by a qualified technician.

Question 9

Before adjusting the parking brake, a technician should first check the ........
brake adjustment.

Accepted Answer

The answer of Before adjusting the parking brake, a technician...

Question 10

A ........or a wet sink can be used to clean brake dust from the brake assemblies.

Accepted Answer

The answer of A ........or a wet sink can be...

Quiz 13: Drum Brake System Inspection and Service