Soru

Zorluk: KolaySkid Control and Recovery

While driving on a slippery road surface, the rear wheels of your commercial motor vehicle lose traction and the back end begins to slide to the right. Which of the following actions should you take to recover from this drive-wheel skid?

  1. A
    Steer sharply to the left, away from the direction the rear wheels are sliding.
  2. Steer toward the right in the direction of the skid, then counter-steer as the vehicle straightens.Cevap
  3. C
    Activate the engine retarder immediately while keeping the steering wheel held firmly straight.
  4. D
    Apply firm, continuous service brake pressure while attempting to negotiate the roadway curve.

Cevap

Steer toward the right in the direction of the skid, then counter-steer as the vehicle straightens.
When recovering from a drive-wheel skid, the driver must turn the front wheels in the direction the rear of the vehicle is sliding to allow the drive tires to regain rolling traction, followed immediately by counter-steering to prevent swinging into a secondary skid in the opposite direction.

Adım Adım Çözüm

1
Release the accelerator pedal and avoid hard braking.
Removes excess drive torque and prevents drive-wheel lockup.
Tires require rolling motion to regain directional grip and lateral stability.
2
Turn the steering wheel in the direction the rear of the vehicle is sliding (to the right).
Aligns the front wheels with the vehicle's momentum and rear-axle trajectory.
Re-establishes vehicle alignment along the intended path of travel.
3
Counter-steer in the opposite direction as soon as the vehicle begins to straighten out.
Prevents the vehicle from swinging past center into an opposite skid.
Maintains control and stabilizes the commercial vehicle on its path.

Anahtar Kavram

Drive-wheel skid recovery through directional steering and counter-steering
Tahmini Süre:45s
Bu soruyu puanla