Which statement about the parking brake is correct?

Which statement about the parking brake is correct?

• A. It should be used only when the vehicle is in motion
• B. It should be used on every ramp test
• C. It should be used only when you are stopped
• D. It should be used every time you leave the vehicle

Answer: (D)

The key safety habit here is to set the parking brake every time you leave the vehicle. This brake locks the wheels to prevent the truck from rolling away if you step out or if the vehicle is parked on any slope. It acts as a fail-safe beyond your normal braking, so you’re protecting against rollaway accidents and injuries. The other statements don’t fit this safety principle. The parking brake isn’t for use while the vehicle is in motion, so using it there would be unsafe. Relying on it only when you’re stopped misses the important step of securing the vehicle whenever you depart. And treating it as something you only use on a specific test or scenario ignores the everyday practice of leaving the vehicle secured to prevent movement. So the best practice is to engage it every time you leave the cab.

The key safety habit here is to set the parking brake every time you leave the vehicle. This brake locks the wheels to prevent the truck from rolling away if you step out or if the vehicle is parked on any slope. It acts as a fail-safe beyond your normal braking, so you’re protecting against rollaway accidents and injuries.

The other statements don’t fit this safety principle. The parking brake isn’t for use while the vehicle is in motion, so using it there would be unsafe. Relying on it only when you’re stopped misses the important step of securing the vehicle whenever you depart. And treating it as something you only use on a specific test or scenario ignores the everyday practice of leaving the vehicle secured to prevent movement. So the best practice is to engage it every time you leave the cab.