9. How can a person check for a leak in hydraulic ...

2026 Illinois DMV Knowledge Test Class B Test 1

9. How can a person check for a leak in hydraulic brakes?

Pump the brake pedal three times and hold the pedal for five seconds. If the pedal moves, there may be a problem.

Push the brake pedal down as far as possible and let go. If the brake pedal returns to its normal position, there may be a problem.

Push the brake pedal down as far as possible and let go. If the brake makes a squeak, there may be a problem.

Remove the rear wheel and listen for a noise when the brake pedal is depressed.

✔ Correct Answer:

Pump the brake pedal three times and hold the pedal for five seconds. If the pedal moves, there may be a problem.