During winter operations, a commercial motor vehicle driver begins to accelerate away from a terminal loading area across packed snow. If the drive wheels begin to spin due to excessive power application, what action should the driver take immediately to regain traction?
- AActivate the engine retarder to slow the spinning drive wheels rapidly.
- Take foot off the accelerator pedal immediately to allow the drive wheels to grip the road.Cevap
- CShift rapidly into a higher gear without clutching to match tire speed to engine RPM.
- DSteer sharply away from the direction of travel to create lateral tire scrub against the snow.
Cevap
Take foot off the accelerator pedal immediately to allow the drive wheels to grip the road.
According to commercial driving basic vehicle control principles, when traction is poor and drive wheels begin to spin from too much power, the driver must immediately take their foot off the accelerator. Removing engine torque allows the tires to stop spinning and regain traction with the surface smoothly.
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Anahtar Kavram
Drive-wheel spin recovery and smooth power application on low-traction surfaces
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