Quiz on Learning Material Part 4 Section 3

What is the main focus of Part 4 Section 3 in the learning material?

• Engine systems

• Braking systems

• Electrical systems

• Transmission systems

What is one of the functions of a braking system on a vehicle?

• Increase vehicle speed

• Reduce vehicle speed

• Enhance fuel efficiency

• Improve aerodynamics

What type of system is a modern light vehicle braking system?

• Pneumatic system

• Hydraulic system

• Electric system

• Mechanical system

What is used to transfer pressure from the brake pedal to the pads or shoes in a hydraulic braking system?

• Air

• Brake fluid

• Electric current

• Mechanical linkage

What happens to the pressure in a hydraulic braking system?

• It decreases as it moves through the system

• It is equal throughout the system

• It increases as it moves through the system

• It fluctuates randomly

Which pistons are normally larger in diameter?

• Those at the wheels, i.e., wheel cylinders or calipers.

• Those in the engine block.

• Those in the fuel pump.

• Those in the transmission.

What is the disadvantage of having smaller pistons?

• The smaller piston has to move further to make the larger pistons move a small amount.

• The smaller piston requires more lubrication.

• The smaller piston generates more heat.

• The smaller piston is more expensive to manufacture.

What is the advantage of the diagonally split system when compared with the front/rear split?

• If one line fails on the diagonal split, 50% of the braking efficiency is maintained.

• It is cheaper to manufacture.

• It requires less maintenance.

• It provides better fuel efficiency.

What is the reason for using flexible pipes in part of the hydraulic system?

• To allow steering and suspension movement without snapping the pipes.

• To reduce the weight of the vehicle.

• To increase the speed of fluid flow.

• To decrease the cost of production.

What is a key requirement for brake fluid regarding viscosity?

• It must be highly viscous to prevent leaks.

• It must flow easily and work over a wide range of temperatures.

• It should be thick to provide better lubrication.

• It should be solid at room temperature.