Exam 50: Brake Systems

Describe the purpose of a height-sensing proportional valve.

If the master cylinder has a large rear chamber and a smaller front chamber, _____.

What could most likely lead to brake hose failure?

Brake hoses are typically rigid steel lines used to transmit brake fluid pressure.

Identify the two dual brake system layouts.

In a drum brake assembly, the brake shoes are forced outward by pistons located inside the ____________________.

A technician is diagnosing a vehicle with a braking system problem. When she removes the filler cap to check the fluid level in the master cylinder, she notices that the rubber seal on the cap is swollen and has begun to disintegrate. What could be the problem?

____________________ rotors consist of two machined braking surfaces separated by a finned center section.

A master cylinder that has a bulge at the rear, near the mounting flange, is a _____type master cylinder.

All manufacturers recommend a specific sequence to follow when bleeding a vehicle's brakes.

Name three types of brake lining friction materials.

Power brakes are completely different than a standard hydraulic brake system, using different types of master cylinders, calipers, and hydraulic circuits.

A center high-mounted stop lamp (CHMSL)has been standard for more than 30 years.

Rusted-through brake lines are uncommon.

The purpose of a pressure differential valve is being discussed. Technician A says it alerts the driver if pressure is lost in either portion of a dual braking system. Technician B says it provides the needed pressure balance between the front and rear brakes. Who is correct?

Describe the functions of the hydraulic system combination valve.

Most manufacturers recommend changing the brake fluid periodically.

The purpose of the master cylinder is to ______.

Fully metallic linings require very high pedal pressure and tend to quickly wear out drums and rotors.

As brake fluid absorbs moisture, _____.