What is one of the main purposes of a braking system?

• To increase the vehicle's speed

• To stop or slow down the vehicle in a controlled way

• To power the vehicle's electrical system

• To help the engine run cooler

Answer explanation

The main purpose of a braking system is to stop or slow down the vehicle in a controlled way, ensuring safety and stability while driving. The other options do not align with the primary function of brakes.

What type of energy transfer occurs in a braking system?

• Chemical energy to electrical energy

• Heat energy to kinetic energy

• Kinetic energy to heat energy

• Electrical energy to mechanical energy

Answer explanation

In a braking system, kinetic energy from the moving vehicle is converted into heat energy due to friction in the brakes. This process reduces the vehicle's speed, making 'kinetic energy to heat energy' the correct choice.

What effect does air in the hydraulic braking system have?

• No effect

• It creates more braking force

• It increases pedal travel and reduces braking force

• It will cause the handbrake to have less effort

Answer explanation

Air in the hydraulic braking system compresses, leading to increased pedal travel and reduced braking force. This results in less effective braking, making it harder to stop the vehicle.

What is the most common operating system used in modern vehicles to operate the brakes?

• Air system

• Mechanical system

• Hydraulic system

• Combination of air and mechanical

Answer explanation

The hydraulic system is the most common in modern vehicles for operating brakes. It uses fluid pressure to transmit force, providing efficient and reliable braking compared to air or mechanical systems.

What is the name of the component that is used to create the pressure in the brake fluid when the brake pedal is pressed?

• Caliper

• Brake drum

• Master cylinder

• Wheel cylinder

Answer explanation

The master cylinder is the component that generates pressure in the brake fluid when the brake pedal is pressed, allowing the brakes to engage effectively. It is essential for the hydraulic brake system's operation.

A mechanical braking system is commonly found on a vehicle as a parking or handbrake.

• True

• False

Answer explanation

True. A mechanical braking system is indeed used as a parking or handbrake in vehicles, providing a reliable way to secure the vehicle when parked.

Air braking systems are typically found on which types of vehicles?

• Motorcycles

• Small passenger cars

• Sports cars

• Heavy vehicles such as lorries and buses

Answer explanation

Air braking systems are primarily used in heavy vehicles like lorries and buses due to their need for powerful braking capabilities. These systems are less common in motorcycles, small passenger cars, and sports cars.

What are the two most common designs of braking systems?

• Air brake and Mechanical brake systems

• Disc and drum brake systems

• Hydraulic brake and Mechanical brake systems

• Servo-assisted and Non-servo-assisted systems

Answer explanation

The two most common designs of braking systems are disc and drum brake systems. Disc brakes provide better performance and heat dissipation, while drum brakes are often used in rear applications for their compact design.

A brake disc is generally made from which material? (There may be multiple answers)

• Aluminium

• Cast iron

• Plastic

• Stainless steel

Answer explanation

Brake discs are typically made from materials that can withstand high temperatures and stress. Cast iron is commonly used for its durability, while stainless steel offers corrosion resistance, making both suitable choices.

In a hydraulic braking system, brake fluid travels from the master cylinder to the braking components at each wheel through what?

• Wire cables

• Springs

• Brake pipes

• Levers

Answer explanation

In a hydraulic braking system, brake fluid is transmitted through brake pipes, which are designed to handle the pressure and ensure fluid reaches the braking components at each wheel effectively.