What term describes a commercial vehicle swinging wide in a turn?

What term describes a commercial vehicle swinging wide in a turn?

• A. Over steering
• B. Off tracking
• C. Under steering
• D. Plowing

Answer: (B)

Off tracking describes how a long vehicle with a trailer doesn’t follow the exact path of the front wheels when turning. Because the trailer is attached behind the tractor, its rear wheels describe a different arc, so the trailer can swing wider in the turn than you’d expect from the cab alone. This is why you need extra room and a wider entry to the turn to avoid striking curbs or other vehicles. The other terms refer to how the steering responds or how traction behaves, but they don’t describe the trailer’s path diverging from the front wheels in a turn.

Off tracking describes how a long vehicle with a trailer doesn’t follow the exact path of the front wheels when turning. Because the trailer is attached behind the tractor, its rear wheels describe a different arc, so the trailer can swing wider in the turn than you’d expect from the cab alone. This is why you need extra room and a wider entry to the turn to avoid striking curbs or other vehicles. The other terms refer to how the steering responds or how traction behaves, but they don’t describe the trailer’s path diverging from the front wheels in a turn.