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Question

Difficulty: EasyTire Failure and Blowouts

When a heavy commercial vehicle suffers a sudden tire blowout at cruising speed, the driver should immediately depress the brake pedal hard to come to a stop as quickly as possible.

Answer: Answer

Answer

False. Drivers must stay off the brakes immediately following a tire blowout and allow the vehicle to coast down before applying light, controlled braking.
The correct response to a blowout is to hold a steady grip on the steering wheel and stay off the brakes until the vehicle slows down on its own. Immediate hard braking amplifies the pull of the failed tire and can cause an uncontrollable skid.

Step-by-Step Solution

1
Analyze the vehicle dynamics during a sudden tire blowout.
Recognize that a blown tire drastically alters handling, creates uneven drag, and reduces traction on that corner.
Abrupt control inputs can easily destabilize the vehicle when traction is uneven.
2
Evaluate the stated action of immediate hard braking.
Determine that immediate aggressive braking is dangerous during a tire blowout.
Hard braking on a blown tire often causes the vehicle to veer uncontrollably or skid, potentially triggering a jackknife or rollover.
3
Determine the validity of the statement.
The statement is False.
Standard CDL emergency operating procedures mandate staying off the brakes until momentum drops naturally.

Key Concept

Emergency response procedures during a tire blowout: avoiding braking and maintaining directional control
Estimated Time:30s
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Topics

Tire Failure and Blowouts

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