Question

Before backing your tractor under the trailer, make sure your trailer brakes are:

Answers

Disengaged.

Locked.

Deactivated.

Dry.

Explanation

Correctly following the steps to couple and uncouple trailers is vital to safely operating a combination vehicle. Before backing your tractor under the trailer while coupling, make sure your trailer brakes are locked.

This questions appears in the following tests:

Alabama Combination

Colorado Tank

Connecticut Combination

North Carolina Combination

South Dakota Combination

Texas Combination

Utah Combination

Wyoming Combination