A commercial driver experiences sudden, severe resistance in the steering wheel accompanied by a violent sideways pull toward the oncoming traffic lane and front-end vibration. Which response correctly identifies this emergency and the precise handling procedure required?
- ARecognize a front steer-tire blowout; apply firm emergency braking immediately to halt the vehicle before the wheel rim contacts the pavement, while counter-steering the directional pull.
- BRecognize a rear drive-tire blowout; counter-steer away from the direction of the pull and pump the service brakes rapidly to stabilize rear traction.
- Recognize a front steer-tire blowout; grip the steering wheel firmly with both hands to maintain lane control, stay completely off the brake pedal until the vehicle decelerates, and gently brake off the roadway.Cevap
- DRecognize a steer-tire failure caused by operating below the 2/32-inch steer-axle tread limit; immediately engage engine retarders and apply hard secondary braking.
Cevap
The driver must recognize a front steer-tire blowout, maintain a firm two-handed grip on the steering wheel to counter the pull, stay off the brakes until the vehicle slows down naturally, and then brake gently to stop off the roadway.
A sudden, violent pull on the steering wheel along with front-end vibration is the textbook indicator of a front steer-tire blowout. Proper emergency procedure requires the driver to hold the steering wheel firmly with both hands to maintain directional control, stay off the brakes entirely to let the vehicle coast and slow down naturally, and only apply gentle braking to move off the road once speed has been safely reduced.
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Anahtar Kavram
Steer-axle tire blowout diagnosis and emergency deceleration procedures
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