Question 986 in the bank

How does the braking system of a vehicle work?

Cross-section diagram of a brake: a green housing with a red piston and blue pads around a disc, beside a wheel hub with bolts, labelled in Hebrew.
  1. Through the braking of the front wheels only.
  2. Through the pressure created between the engine and the clutch.
  3. By turning the engine opposite to its normal direction of turning.
  4. Correct answer: Through the friction between the brake disc and the brake pads.

Why this is the answer

The correct answer in the official bank: Through the friction between the brake disc and the brake pads.

Pressing the brake pedal builds pressure in the brake fluid, which pushes the brake piston. The piston squeezes the brake pads against the disc that turns with the wheel, and the friction turns the vehicle's motion energy into heat, slowing the wheel. The brakes work on all the wheels, and it is not the engine or the clutch that stops the vehicle.

Topic: Know your vehicle. The bank marks it for these classes: Light truck (C1), Heavy truck (C), Bus (D), Motorcycle (A), Tractor (1), Private car (B).