A commercial motor vehicle driver is accelerating away from an intersection on a rain-slicked roadway when the drive wheels begin to spin. In what sequence should the driver execute the following steps to regain traction and safely resume acceleration?
- 1Take foot off the accelerator pedal immediately to stop drive-wheel spin.
- 2Allow the drive wheels to slow down and re-establish rolling grip with the road surface.
- 3Reapply throttle very gradually to initiate smooth forward acceleration.
- 4Increase speed progressively while continually monitoring for drive-wheel slippage.
Cevap
The correct procedural order is: (1) Take foot off the accelerator pedal immediately to stop drive-wheel spin, (2) Allow the drive wheels to slow down and re-establish rolling grip with the road surface, (3) Reapply throttle very gradually to initiate smooth forward acceleration, and (4) Increase speed progressively while continually monitoring for drive-wheel slippage.
According to commercial driving standards, if drive wheels begin to spin on poor-traction surfaces such as wet or icy pavement, the operator must immediately remove their foot from the accelerator. Once the spinning wheels slow down and re-establish rolling contact with the roadway surface, the driver can then reapply the throttle very gradually and accelerate smoothly up to road speed.
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Anahtar Kavram
Traction Recovery and Progressive Throttle Control on Low-Traction Surfaces
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