ASE A5 Study Guide
fully solved & updated
2025
Nonintegral ABS
Systems have a seperate master cylinder, vacuum booster and modulator
Integral ABS
Systems have an electric pump, Accumulator, Modulator and master
cylinder combined into a single modular unit
Normal Pressure reading during a moderate brake pedal application with
the engine running HOW MANY PSI
900 PSI
metering valve
A valve in the brake system reduces pressure to the frot brake until rear
brakes apply
Proportioning Valve
A valve in the brake stem which reduces pressure to the rear break to help
prevent brake lockup
Burnishing
Burnishing is when metal to metal rubs together and forms a new polised
surface leaving streaks (wheel bearings)
Springy spongy pedal / poor stopping ability is usually caused by:
Air in lines
Contaminated fluid
Air in the braking system (brake lines)
Leaking wheel cylinders (air in brake lines)
Faulty or leaking brake booster causes what
Hard brake pedal
Increased stopping distance
fully solved & updated
2025
Nonintegral ABS
Systems have a seperate master cylinder, vacuum booster and modulator
Integral ABS
Systems have an electric pump, Accumulator, Modulator and master
cylinder combined into a single modular unit
Normal Pressure reading during a moderate brake pedal application with
the engine running HOW MANY PSI
900 PSI
metering valve
A valve in the brake system reduces pressure to the frot brake until rear
brakes apply
Proportioning Valve
A valve in the brake stem which reduces pressure to the rear break to help
prevent brake lockup
Burnishing
Burnishing is when metal to metal rubs together and forms a new polised
surface leaving streaks (wheel bearings)
Springy spongy pedal / poor stopping ability is usually caused by:
Air in lines
Contaminated fluid
Air in the braking system (brake lines)
Leaking wheel cylinders (air in brake lines)
Faulty or leaking brake booster causes what
Hard brake pedal
Increased stopping distance
