What factors affect the stability of a freight-carrying commercial vehicle while driving in a curve?
- The weight of the vehicle and of the engine.
- The radius and length of the curve.
- Correct answer: The vehicle’s speed, the radius of the curve and the height of the vehicle’s center of gravity.
- Only the vehicle’s speed and weight.
Why this is the answer
The correct answer in the official bank: The vehicle’s speed, the radius of the curve and the height of the vehicle’s center of gravity.
In a curve, centrifugal force pushes the vehicle outward, and it grows with higher speed and a tighter radius. The higher the center of gravity, for example with a tall load, the greater the risk of rolling over. Weight alone does not decide stability, so slow down before sharp curves, especially when carrying a high load.