Practice question

What are the three basic causes of skidding and jackknifing?

  1. Oversteering, under braking, and excessive speed
  2. Overaccelerating, over braking, and oversteering
  3. Sudden lane changes, speeding, and poor visibility
  4. Bad weather, high traffic, and worn tires

Answer: B — Overaccelerating, over braking, and oversteering

The three basic causes of skidding and jackknifing are indeed overaccelerating, over braking, and oversteering. Understanding these causes is crucial for maintaining vehicle control and safety. Overaccelerating occurs when a driver applies too much power to the wheels, especially on slippery surfaces. This can cause the wheels to lose traction and spin, leading to a loss of control. Over braking refers to applying the brakes too hard or too quickly, especially in wet or icy conditions. This can lock the wheels and result in skidding, as the vehicle loses grip on the road. Oversteering happens when the rear wheels lose grip while cornering. This can send the back end of the vehicle swinging out, leading to a spin or even a jackknife situation for trailers. Recognizing these behaviors allows drivers to take appropriate actions, such as adjusting their speed, smoothening acceleration, and practicing gentle steering inputs, thereby significantly reducing the risk of skidding and jackknifing.

Practice more: JJ Keller Entry Level Driver Training for CDL (Commercial Driver’s License) Practice Test →