ELDT Skid Control and Recovery 2 — Questions and Answers
Question 1: What most often causes a rear-wheel braking skid in a commercial vehicle?
- Braking too hard and locking the wheels (Correct answer)
- Turning the steering wheel gently
- Driving at a constant speed
- Using the horn
Correct answer: Braking too hard and locking the wheels
Rear-wheel skids are most commonly caused by braking too hard and locking the rear wheels.
Question 2: In a front-wheel skid, what typically happens to the vehicle?
- It rotates sharply into a spin
- It continues in a straight line even when you steer (Correct answer)
- It accelerates uncontrollably
- It stops instantly
Correct answer: It continues in a straight line even when you steer
In a front-wheel skid the vehicle keeps moving straight ahead no matter how you turn the wheel.
Question 3: The most common cause of a front-wheel skid is:
- Underinflated tires
- Driving too fast for conditions (Correct answer)
- Braking gently
- A cold engine
Correct answer: Driving too fast for conditions
Driving too fast for conditions is the leading cause of front-wheel skids.
Question 4: To recover from a front-wheel skid, you should:
- Steer harder in the direction you want to go
- Stop turning and/or braking so the wheels can grip again, then slow down (Correct answer)
- Accelerate to regain control
- Pump the brakes rapidly
Correct answer: Stop turning and/or braking so the wheels can grip again, then slow down
Ease off the brake or accelerator and stop turning so the front wheels regain traction, then slow down.
Question 5: A driver whose drive wheels begin to skid on ice should first:
- Press the accelerator harder
- Stop braking to let the wheels roll and turn quickly toward the skid (Correct answer)
- Set the parking brake
- Turn away from the direction of the skid
Correct answer: Stop braking to let the wheels roll and turn quickly toward the skid
Release the brake so the wheels roll freely and steer quickly in the direction you want the front to go.
Question 6: After the rear of your trailer starts to slide during a skid recovery, you should:
- Hold the wheel straight
- Counter-steer quickly as the vehicle straightens to avoid over-correcting (Correct answer)
- Slam on the brakes
- Ignore it and keep accelerating
Correct answer: Counter-steer quickly as the vehicle straightens to avoid over-correcting
As the vehicle straightens you must counter-steer promptly to prevent swinging into a skid the other way.
Question 7: Overcorrecting the steering during a skid usually results in:
- A smoother recovery
- A skid in the opposite direction and possible loss of control (Correct answer)
- Better braking
- Increased tire traction
Correct answer: A skid in the opposite direction and possible loss of control
Over-steering during recovery commonly throws the vehicle into a skid the other way.
ELDT Skid Control and Recovery 2
What most often causes a rear-wheel braking skid in a commercial vehicle?