Practice question

A high-pitched squealing noise occurs whenever the brakes are lightly applied. What is the most likely cause?

  1. Brake pad wear indicators contacting the rotor
  2. A warped brake rotor causing vibration
  3. Air in the front brake calipers
  4. Brake fluid contaminated with moisture

Answer: A — Brake pad wear indicators contacting the rotor

The correct answer is shown above. Try the full quiz for additional practice.

Practice more: Driver Fault Finding Test (DFFT) →