Practice question
On a long downgrade, the safest braking method for a heavy combination vehicle is to:
- Ride the brakes the entire way
- Select a low gear before the descent, use engine braking, and apply service brakes firmly in short snubs to control speed
- Coast in neutral
- Apply the trailer brakes only
Answer: B — Select a low gear before the descent, use engine braking, and apply service brakes firmly in short snubs to control speed
The correct answer is shown above. Try the full quiz for additional practice.
Practice more: USPS MVO Exam Practice Questions - USPS Exam 220 230 240 - Motor Vehicle Operator Tractor Trailer Operator (Driving Experience Assessment) Exam →