Skid Control and Recovery
This domain tests recognition of skid causes and the correct recovery inputs. The exam focuses on releasing brakes, steering with the skid, and avoiding overcorrection.
Causes and recovery
Skids usually result from driving too fast for conditions, overbraking, or abrupt steering. In a rear-wheel skid, release the brakes and steer in the direction the rear is sliding. Do not overcorrect; when traction returns, countersteer to straighten the vehicle. In a front-wheel skid, release the brakes and steer where you want to go. Avoid acceleration until control is regained.
Off-road recovery
If wheels drop off the pavement, hold the wheel firmly, slow down, and return to the road gently when you have control. A sharp return can cause a skid or rollover. Do not brake hard while a wheel is off the shoulder.
Worked example
Your rear end slides to the right on a wet curve. Release the brakes, look and steer right-the direction the rear is sliding-and avoid adding power. As the rear comes back in line, countersteer left to straighten the tractor and trailer. Steering left immediately would worsen the skid. If you overcorrect, make a smaller correction rather than a series of sharp swings.
Traps that cost marks
Steering opposite the skid; braking harder when the wheels are already sliding; accelerating to pull out of a rear skid; and overcorrecting into a second skid. Also remember that a jackknife is a severe skid; smooth inputs matter more than aggressive ones.