Question Which of the following is a sign that brakes will need repair? Answers Brake pads are not covered in grease. Brake pads are not covered in oil. Brake shoes are worn thin. Explanation When inspecting your brakes, you should check for cracked drums; shoes or pads covered in oil, grease, or brake fluid; and shoes that are missing, broken, or worn dangerously thin. This questions appears in the following tests: Iowa Class B Knowledge Test Maryland Double Minnesota Bus New Hampshire Class B Knowledge Test