Explain the term “axle” in a vehicle:
- Correct answer: Shaft or system of drive shafts running the width of the vehicle, on which the wheels are installed.
- The drive shaft that transmits the rotary motion from the gearbox to the differential.
- A line along the vehicle, from bumper to bumper, which runs parallel to the vehicle's longitudinal axis.
- The back beam of the chassis, to which the towing pin of the truck tractor is connected.
Why this is the answer
The correct answer in the official bank: Shaft or system of drive shafts running the width of the vehicle, on which the wheels are installed.
An axle is a shaft, or a system of shafts, running across the width of the vehicle, with the wheels mounted on it at each side. It carries the weight of the vehicle and its load down to the wheels and the road. Do not confuse it with the drive shaft, which runs lengthwise and carries rotation from the gearbox to the differential, or with the chassis rear cross-beam.