CDL · Vehicle inspection

In what situation should you check that the parking brake works?

Correct answer: While the vehicle is parked.

Answer options

  1. AWhile the vehicle is parked Correct
  2. BWhile you are traveling at highway speed
  3. CWhile the vehicle is heading down a steep hill

Why

The check is done with the vehicle stopped: set the parking brake, then gently try to pull forward against it in a low gear to make sure it keeps the vehicle from moving. Trying it at speed or on a downhill stretch would be dangerous if the brake did not hold.

About this question

Topic: Vehicle inspection   License: CDL

Part of these practice sets:

Where it applies: Asked in every state.

Practice the whole set

This question is part of Inspecting Your Vehicle (32 questions). Take the full set and check your score.

Practice Inspecting Your Vehicle

Practice on your phone.

Practice here in your browser, or use the app with the same questions and explanations. It's free on the App Store.