Hydraulics and Power Brakes

A substantial leak in the _____________ will prevent enough pressure from building to exert the necessary braking force.

• vacuum booster

• power steering

• engine oil

• hydraulic system

Which of the following variables is related to pressure and force in a hydraulic system?

• Input force

• Working pressure

• Output force

• All the above

Which of the following is a main component of a typical hydraulic brake system?

• Brake pedal

• Brake fluid

• Master cylinder

• Wheel cylinder and Brake caliper

Which of the following is a property of typical brake fluid used in automobile brake systems?

• High boiling point

• Low freezing point

• Hygroscopic

• Harmful to painted surfaces

Brake fluid is graded by the Department of Transportation on which of the following?

• Color

• pH value

• How much water it can hold

• All of the above

____________________ are used on drum brake systems to maintain brake fluid pressure and prevent air entry when the brakes are off.

• Differential pressure switches

• Residual pressure valves

• Proportioning valve

• Quick take up port

Determining if brake fluid should be flushed can be done using which of the following methods?

• Test strip

• DVOM-galvanic reaction test

• Time and mileage

• tasting it

A typical brake pedal inspection includes which of the following?

• Brake pedal height

• Brake pedal free play

• Brake pedal travel

• All the above

What type of flare ?

• double flare

• single flare

• iso or bubble flare

• compression fitting

What type of flare?

• single flare

• double flare

• iso or bubble flare

• compression fitting