Practice question

What is the function of the brake pads indicator (wear sensor) in a vehicle?

  1. To adjust the brake fluid pressure automatically
  2. To produce a high-pitched squealing sound when the brake pads are worn down and need replacement
  3. To display the brake pad thickness on the digital dashboard screen
  4. To stop the car automatically in emergencies

Answer: B — To produce a high-pitched squealing sound when the brake pads are worn down and need replacement

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