Tractor-Trailer Vehicle Combination Rollover Risk Factors

What is the most likely factor that causes a tractor-trailer vehicle combination to roll over in a turn?

A) Double 48-foot trailers

B) Triple 28-foot trailers

C) Single 53-foot trailer

D) Flatbed trailers

Answer:

Double 48-foot trailers

Explanation:

The correct answer is A) Double 48-foot trailers. A tractor-trailer vehicle combination is most likely to roll over in a turn when the configuration includes double 48-foot trailers. This is because longer trailers have a higher center of gravity, making them more prone to rolling over during sharp turns.