Why is hydraulic fluid used to operate brakes in car?

In most modern vehicles, brake systems are hydraulic. Brake fluid is used in hydraulic brake systems to transmit the force from the brake pedal to the brake pads or shoes. When you press the brake pedal, the master cylinder creates hydraulic pressure, which is transferred through brake lines to the wheel cylinders or calipers. This pressure forces the brake pads or shoes against the brake rotors or drums, which slows down or stops the vehicle.

Here are some of the advantages of using hydraulic fluid in brakes:

* Hydraulic fluid is incompressible. This means that the force applied to the master cylinder is transmitted directly to the wheel cylinders or calipers without any loss of pressure.

* Hydraulic fluid is able to withstand high temperatures. This is important because the brake system can generate a lot of heat during braking.

* Hydraulic fluid is relatively inexpensive and easy to maintain. This makes it a cost-effective choice for use in brakes.

In addition to these advantages, hydraulic brakes are also very reliable and provide good braking performance. This is why they are the most common type of brake system used in cars today.