Question

Difficulty: HardTire Blowout and Tread Separation Response

While navigating a curved road section, a driver experiences a sudden front tire tread separation that causes the vehicle to pull strongly toward the outer edge of the lane. What is the correct initial sequence of actions the driver should take to maintain control and safely stop?

  1. Maintain a firm grip on the steering wheel to control the direction, gradually ease off the accelerator, and apply gentle braking only after the vehicle has slowed down significantly.Answer
  2. B
    Depress the brake pedal immediately and forcefully to bring the vehicle to a halt before it strays into oncoming traffic.
  3. C
    Shift the transmission immediately into neutral and engage the emergency parking brake to bring the rear axle to a quick stop.
  4. D
    Jerk the steering wheel sharply in the direction opposite to the pull while rapidly pumping the foot brake.

Answer

Maintain a firm grip on the steering wheel to control direction, ease off the accelerator gradually, and apply gentle braking only after the vehicle has slowed down significantly.
The correct response requires keeping two hands firmly on the steering wheel to counteract the violent pull, letting off the gas pedal smoothly so natural rolling resistance decreases speed, and using light brake pressure only when the vehicle has slowed to a manageable speed.

Step-by-Step Solution

1
Stabilize steering direction
Prevents the vehicle from drifting into adjacent lanes or off the road surface.
Tire blowout causes severe drag and lateral pulling forces that require firm two-handed steering input to counter.
2
Gradually reduce throttle input
Allows engine braking and tire rolling resistance to reduce vehicle momentum smoothly.
Sudden deceleration shifts weight forward rapidly, which can collapse the blown tire rim and induce dynamic instability.
3
Apply light braking at reduced speed
Brings the vehicle safely to a controlled stop on the shoulder.
Braking is safe only after aerodynamic drag and rolling resistance have dissipated most of the kinetic energy.

Key Concept

Emergency response to tire blowout and tread separation
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