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Difficulty: MediumSkid Control and Recovery

While accelerating onto a rain-slicked highway from an on-ramp, the drive wheels of your vehicle lose traction, spin freely, and begin drifting sideways. Which action should you take immediately to recover from this skid?

  1. A
    Turn the steering wheel sharply in the direction opposite to the rear slide while maintaining steady throttle pressure.
  2. Release the accelerator to allow the spinning drive wheels to slow down and regain rolling traction.Answer
  3. C
    Engage the engine retarder to create auxiliary mechanical drag and slow the spinning drive axle.
  4. D
    Apply firm service brake pressure immediately while downshifting into a lower transmission gear.

Answer

Release the accelerator to allow the spinning drive wheels to slow down and regain rolling traction.
In an acceleration skid, the drive wheels spin because too much power was applied for the road conditions. The proper recovery procedure is to take your foot off the accelerator, which stops the wheelspin and allows the drive tires to regain rolling traction.

Step-by-Step Solution

1
Recognize that excessive driving torque has caused the drive wheels to spin and slide sideways.
Identification of an acceleration skid.
An acceleration skid happens when tractive force at the drive wheels exceeds available surface adhesion.
2
Take your foot completely off the accelerator without applying the service brakes.
The drive wheels stop spinning freely and rolling traction is restored.
Removing the driving force lets the tires resume rolling, which restores directional stability.

Key Concept

Drive-wheel acceleration skid recovery via throttle release
Estimated Time:1m 0s
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Topics

Skid Control and Recovery

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