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Difficulty: MediumTire Failure and Blowouts

An operator driving a straight truck on an arterial roadway suddenly experiences a loud report accompanied by heavy steering resistance and a forceful pull toward the oncoming traffic lane. Which of the following procedures should the operator perform first to maintain control and bring the vehicle to a safe stop?

  1. A
    Stomp the service brake pedal immediately with full pressure to stop the vehicle before it drifts across the roadway centerline.
  2. Grip the steering wheel firmly with both hands to counter the pull, stay off the brakes while the vehicle decelerates, and gently steer toward the shoulder once speed has dropped.Answer
  3. C
    Activate the engine retarder immediately to slow the drive axle and rapidly counter-steer away from the direction of the pull.
  4. D
    Pump the brake pedal rapidly while turning sharply toward the right shoulder to clear active traffic lanes as fast as possible.

Answer

Grip the steering wheel firmly with both hands to counter the pull, stay off the brakes while the vehicle decelerates, and gently steer toward the shoulder once speed has dropped.
When a front steer tire fails, it produces a heavy steering drag and a strong pull in the direction of the failed tire. The correct emergency response requires firmly holding the steering wheel with both hands to counteract the pull, staying completely off the brake pedal until the vehicle has naturally slowed down, and then gently braking while guiding the vehicle to a safe stop off the roadway.

Step-by-Step Solution

1
Identify the nature of the tire failure based on vehicle feedback.
Heavy drag and strong pull of the steering wheel indicate a front (steer) tire blowout.
Front tire blowouts affect directional stability directly through the steering mechanism.
2
Maintain directional control by holding the steering wheel firmly with both hands.
The vehicle stays within its lane rather than veering into oncoming traffic.
Counteracting the mechanical pulling force is critical to preventing lane departure.
3
Stay completely off the foot brake and allow natural aerodynamic drag and engine compression to reduce speed.
The remaining operational tires maintain traction without locking up or losing lateral grip.
Braking immediately during a blowout can cause severe instability, wheel lockup, or rollovers.
4
Coast down to a low speed, then brake gently to pull fully off the roadway onto a firm shoulder.
The commercial vehicle comes to a controlled, safe stop clear of moving traffic.
Gentle braking is only safe once vehicle momentum has dropped substantially.

Key Concept

Front tire blowout emergency response and vehicle control technique
Estimated Time:1m 0s
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Topics

Tire Failure and Blowouts

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