Hydraulic brake system

When discussing brake fluid "hygroscopic" means?

• Repels moisture

• Absorbs moisture

• Absorbs heat

Name this component

• Vacuum booster

• Master cylinder

• Wheel cylinder

A vehicle has a hydroboost power brake system. Poor brake performane can be caused by:

• A defective vacuum booster

• Low Engine Vacuum

• Low power steering fluid

• A faulty brake light switch

Some vehicles use a vacuum pump to operate the servo because:

• Some engines such as diesels do not produce vacuum in the usual way

• They produce too much vacuum when slowing down

• It is more efficient than other systems

• It saves wasting vacuum that could be used to power other systems

A _______ is the primary fluid-pressurizing device in a hydraulic system. In automotive use, it is found in brake and hydraulic clutch systems, and is pedal activated either directly or in a power brake system, through the power booster.

• Wheel Cylinder

• Break Dancing Cylinder

• Brake Master Cylinder

• Brake Fluid Reservoir

Brake lines should be inspected for what faults?

• Leaks

• Kinks

• Rust

• All the above

Tech A says a hydraulic system uses air to transmit motion or pressure from one point to another. Tech B says a hydraulic system uses a liquid to transmit motion or pressure from one point to another. Who is right?

• Tech A

• Tech B

• Both Tech A and B

• Neither Tech A or B

Name this component

• Brake line

• Brake hose

• Brake pipe

Name this component

• Hydro-boost

• Vacuum booster

• Master cylinder

The_______________ supplies fluid pressure to the hydro-boost unit.

• Fuel Pump

• Water Pump

• Power steering Pump