AD Braking Principles

Organic friction material ______ metallic materials

• Is more fade resistant than

• is only used on front disc brakes rather than

• is quieter than

• requires higher pressure than

A vacuum brake booster multiplies force due to the ______ ______ across the diaphragm

• Atmospheric pressure

• Vacuum pressure

• Spring force

• Pressure differential

Fluids used within the hydraulic brake system must be able to withstand large amounts of heat and be non-compressible

• True

• False

The purpose of the master cylinder is to ______

• supply mechanical force to the brake mechanisms

• Automatically pump the brakes during emergency stops

• All answers are correct

• Generate the hydraulic pressure needed to apply the brake mechanism

Pascals law states

"That a change in pressure at any point in an enclosed fluid system is transmitted equally to all points in the system"

• True

• False

Which of the following fluids should be used in a brake system?

• Engine oil

• power steering fluid

• Transmission oil

• None of these answers are correct

If a force of 150 newtons is applied to a master cylinder with a piston size of 25 square mm, how much force is developed on a wheel cylinder that has a piston area of 50square mm?

• 150N

• 75N

• 300N

• 450N

If a master cylinder with a bore of 25mm, is replaced with a cylinder with a bore of 19mm, the pressure in the brake lines will be higher when the same brake pedal pressure is applied.

• True

• False

The brake system converts the momentum of the vehicle into ______

• Heat Energy

• Kinetic Energy

• Mechanical Energy

• Potential Energy

Pressure within an enclosed hydraulic brake circuit is affected by the distance between the master cylinder and the rear caliper

• True

• False