Answer :
10.1.1 The brake system in cars is essential for safety. It is responsible for slowing down or stopping the vehicle by applying force to the wheels or to a rotating part connected to the wheels. When the driver presses the brake pedal, the system generates friction, which converts kinetic energy into heat, effectively slowing the car down.
10.1.2 Brake failure in any system can be caused by several factors, but two common causes are:
- Loss of Brake Fluid: Brake fluid is crucial for transmitting the force from the brake pedal to the brakes themselves. Leaks or evaporation can lead to brake fluid loss and ultimately brake failure.
- Worn Brake Pads or Shoes: Over time, the material on brake pads or shoes wears away, reducing their ability to generate sufficient friction to stop the vehicle.
10.1.3 Disc brakes are more effective than other types because they are better at dissipating heat. This is crucial since brakes generate a lot of heat during operation. Disc brakes are exposed to air, which helps cool them down more efficiently than other systems.
10.1.4 The disc brake system is activated by the hydraulic pressure generated when the driver presses the brake pedal. The pressure forces brake fluid to flow through the brake lines and calipers, pushing the pads against the brake disc to create friction.
10.1.5 The input cylinder in the disc brake system is known as the master cylinder. It holds the brake fluid and generates the hydraulic pressure needed to operate the brakes when the pedal is pressed.
10.1.6 The two brake systems in a car are:
- Disc Brakes
- Drum Brakes
10.1.7 The type of force that occurs between the pads and discs in the wheels is known as frictional force.
1.1.8 If the piston seal breaks, it will result in a loss of hydraulic pressure. This can lead to decreased braking performance or complete brake failure, as it would allow brake fluid to leak instead of being properly pressurized.
1.9 A disc brake is unique because of its ability to provide consistent performance under heavy loads and at high speeds. Its open design allows for better cooling, which prevents overheating and brake fade, making it reliable under various driving conditions.
