Question 1

Technician A says that the access hole for the starwheel adjuster may be in the brake drum web. Technician B says that the access hole for the starwheel may be found in the backing plate. Which technician is correct?

Accepted Answer

Both technicians A and B are correct. The access hole for the starwheel adjuster can indeed be found in different locations depending on the vehicle's design. Some vehicles have the access hole in the brake drum web, while others have it in the backing plate.

Question 2

When manually adjusting brakes equipped with automatic adjusters, the ________ must be pushed or held out of the way.

Accepted Answer

The adjuster lever must be pushed or held out of the way when manually adjusting brakes equipped with automatic adjusters to prevent the automatic adjustment mechanism from engaging during the manual adjustment process.

Question 3

Technician A says that when repairing brakes, it is a good practice to inspect the backing plate for a bent or cracked structure. Technician B says that the pads of the backing plate should be lubricated with heavy grease before installing new shoes. Which technician is correct?

Accepted Answer

Technician A is correct because inspecting the backing plate for damage is a standard procedure in brake repair to ensure the brakes function properly. Technician B is incorrect because lubricating the pads of the backing plate with heavy grease can attract dirt and debris, leading to brake malfunction.

Question 4

Wheel cylinders are being discussed. Technician A says that if a wheel cylinder is not leaking fluid it is OK. Technician B says that wheel cylinders require further inspection. Which technician is correct?

Accepted Answer

Technician B is correct because even if a wheel cylinder is not leaking fluid, it may still have internal issues such as corrosion or wear that can affect braking performance, thus requiring further inspection.

Question 5

What is the technician doing in this illustration?

Accepted Answer

The answer of What is the technician doing in this...

Question 6

This tool is used to remove the ________.

Accepted Answer

The answer of This tool is used to remove the...

Question 7

What is the technician checking in this illustration?

Accepted Answer

The answer of What is the technician checking in this...

Question 8

Dry backing plate pads can cause the brakes to squeak.

Accepted Answer

Dry backing plate pads can cause metal-to-metal contact or increase friction between the brake pad and the caliper, leading to squeaking noises during braking.

Question 9

A frozen adjuster can cause a low brake pedal.

Accepted Answer

A frozen adjuster can prevent the brake components from properly adjusting, leading to increased pedal travel and a low brake pedal sensation.

Question 10

A leaking axle seal may cause the drum brakes to make a grinding noise.

Accepted Answer

The answer of A leaking axle seal may cause the...

Quiz 100: Drum Brake Diagnosis and Service