Brakes

Multiple Choice

In a hydraulic brake system, what happens when the brake pedal is pressed?

• Air pressure increases

• Brake fluid pressure increases

• Brake fluid freezes

• Brake fluid evaporates

Multiple Choice

What is the function of the handbrake in the braking system?

• To slow down the vehicle

• To act as an emergency brake

• To control the steering

• To increase speed

Multiple Choice

What happens when the brake pedal is pressed?

• The brake servo uses a vacuum to assist the action and operate the master cylinder.

• The brake fluid is released from the master cylinder.

• The brake pads are automatically replaced.

• The brake lights turn on.

Multiple Choice

What happens when the brake pedal is released?

• The hydraulic pressure increases

• The hydraulic pressure falls

• The brake pads stay engaged

• The brake fluid leaks out

Multiple Choice

On which cylinder does the foot brake first apply its force?

• Main cylinder

• Master cylinder

• Front cylinder

• Brake cylinder

Multiple Choice

What is the function of the master cylinder in a dual circuit brake system?

• To provide hydraulic pressure

• To store brake fluid

• To connect the brake lines

• To control the brake pads

Multiple Choice

What are the two types of dual circuit brake systems illustrated in the image?

• Front and back hydraulic circuits

• Diagonal hydraulic circuits

• Single hydraulic circuit

• Combined hydraulic circuit

Multiple Choice

What are the advantages of hydraulic disc brakes over mechanical disc brakes?

• Hydraulic disc brakes are less precise than mechanical disc brakes

• Hydraulic disc brakes require more maintenance than mechanical disc brakes

• Hydraulic disc brakes have less stopping power than mechanical disc brakes

• Hydraulic disc brakes offer better stopping power, more precise modulation, and require less maintenance compared to mechanical disc brakes.

Multiple Choice

If one circuit of a dual circuit braking system fails, the vehicle can still be stopped within the same time and with the same effort. What is the nature of this statement?

• True

• False

• Not applicable

• Depends on the vehicle

Multiple Choice

According to Pascal’s principle, in a hydraulic system a pressure exerted on a piston produces an equal increase in pressure on another piston in the system. If the second piston has an area 10 times that of the first, the force on the second piston is 10 times greater, though the pressure is the same as that on the first piston.

• True
• False

Multiple Choice

What is the function of the inlet check valve in a hydraulic system?

• To allow fluid to enter the system

• To prevent fluid from flowing back

• To control the pressure of the fluid

• To lift the load

Multiple Choice

If the input piston is larger than the output piston, what is the effective force and movement of the output piston compared to the input?

• The force will be less, and so will the movement

• The force will be more, but the movement will be less

• The force will be less, but the movement will be more

• Both the force and the movement will be more

Multiple Choice

Two pistons are connected by a hydraulic line. If the input piston is larger than the output piston, what is the effective force and movement of the output piston compared to the input?

• The force will be less, and so will the movement

• The force will be more, but the movement will be less

• The force will be less, but the movement will be more

• Both the force and the movement will be more

Multiple Choice

What materials are brake pipes typically made from?

• Plastic

• Aluminum

• Double wall steel or copper alloy

• Rubber

Multiple Choice

What are the specifications that brake fluid must meet according to the Hydraulic Fluid Specification?

• Viscosity

• Lubrication

• Non-corrosive

• All of the above

Multiple Choice

Why is it dangerous to have air in the hydraulic brake system?

• It increases the braking distance

• It makes the brakes too sensitive

• It causes the brake fluid to leak

• It reduces the car's speed

Multiple Choice

Why is brake fluid important in a braking system?

• It lubricates the moving parts

• It cleans the brake components

• It transmits force to the brakes

• It cools down the brake system