Junior Weekly Quiz 12/4/2020

Which of the following is not part of a drum brake assembly?

• Wheel cylinder.

• Booster

• shoe

• drum

A certain automotive brake system’s residual pressure valve maintains residual fluid pressure of 9 psi. What is the purpose of this residual pressure?

• To keep the brakes partially engaged at all times.

• To prevent contaminants from entering the system.

• To equalize braking action at each wheel.

• To prevent wheel lockup during heavy brake applications.

A hydro-boost power brake system uses pressure from the power steering pump. True or False?

• TRUE

• FALSE

Device that uses system pressure to produce friction for slowing or stopping wheel rotation.

• master cylinder reservoir

• brake disc

• wheel brake assembly

• secondary piston

A hydraulic piston-type pump that stores brake fluid and develops pressure for a brake system.

cup

master cylinder

hybrid brake

wheel cylinder assembly

• cup

• master cylinder

• wheel cylinder assembly

• hybrid brake

A brake pedal that slowly goes to the floor when the brakes are applied, with the engine off, with no fluid loss could indicate the

• master cylinder is defective

• brake pads or brake shoes may be worn out

• power brake booster is defective

• brake fluid is low

If all four wheels tend to slowly lock up while driving, the most likely trouble would be in the

• brake drums

• brake shoes

• master cylinder

• wheel cylinder

When replacing the left front caliper on a diagonally spilt brake system, the correct bleeding sequence is

• left front - right rear

• right front - left rear

• right rear - left front

• left rear - right front

When turning a scored brake drum, the maximum oversize limit for MOST automobiles would be

• 0.030 inch

• 0.060 inch

• 0.090 inch

• 0.110 inch

The number 10.090 cast into the brake drum refers to the

• minimum diameter of the drum

• discard diameter

• original size of the drum

• manufacturer's part number of the drum