Practice question

When parking a combination vehicle, the best practice is to:

Park in gear without setting the parking brake
Park on level ground with parking brakes set on tractor and trailer, and chock wheels if grade exists
Leave the trailer air supply pulled out and assume that is enough
Park with the engine running

Answer: B — Park on level ground with parking brakes set on tractor and trailer, and chock wheels if grade exists

The correct answer is shown above. Try the full quiz for additional practice.