A vehicle has a power-assisted brake. What happens when the engine is switched off?
Mechanics (different vehicle systems)
Explanation
The **brake booster** is a device that helps the foot brake operate more efficiently. When the engine is running, the brake booster uses the engine's power to amplify the force you apply to the brake pedal, making braking easier and more effective.
- **When the engine is off**, the brake booster stops receiving power, which means it can no longer amplify the force you apply to the brake pedal. Therefore, the foot brake will not work as well as when the engine is running.
- In this situation, you will need to **press the pedal harder** to achieve the same braking effect you would get with the engine running. This is because the force you apply is no longer being amplified by the brake booster.
- It is important to remember that the foot brake still works, but it requires more physical effort from the driver to stop the vehicle effectively.
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