Which of these is NOT a common cause of brake failure?
Mechanics (different vehicle systems)
Explanation
The **brakes** are essential for reducing speed or stopping a vehicle. They work by transmitting force to the wheels through a **brake fluid**, which activates the **pads or shoes** to stop the movement.
- **Brake fluid loss**: If there is a loss of this fluid, the force is not transmitted correctly, which can cause a brake failure. This is a common cause of problems in the braking system.
- **Wear of shoes or pads**: The pads and shoes wear out with use, and if they are too worn, they cannot effectively brake the wheels. This wear is another frequent cause of brake failures.
- **Excessive cooling**: This is not a common cause of failure. In fact, cooling is necessary when the brakes become too hot from continuous use, such as when descending a long slope. In these cases, releasing the pedal allows the brakes to cool down and function properly.
Therefore, **excessive cooling** is not a frequent cause of brake failure, unlike fluid loss or wear of the pads or shoes.
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