When pulling away from a complete stop on a slippery, snow-packed surface, what is the correct chronological sequence of steps to gain vehicle movement without losing drive-wheel traction?
- 1Ensure steering wheels are pointed straight ahead and verify that auxiliary engine retarders are switched off.
- 2Select a proper low starting gear to provide controlled wheel torque.
- 3Release the clutch smoothly and ease into motion at low engine RPM without revving the engine.
- 4Increase throttle gradually and smoothly only after drive tires have established forward rolling traction.
Answer
The correct sequence begins with aligning the steering wheels and verifying retarders are turned off, followed by selecting a low gear, smoothly engaging the clutch at low engine speed, and finally applying gradual acceleration once rolling traction is established.
According to standard commercial driving guidelines for winter operations, starting on slick surfaces requires preparing the vehicle setup first (straight wheels and disabled retarders), selecting a low gear, engaging the drivetrain gently near idle speed, and only accelerating once rolling traction has been achieved.
Step-by-Step Solution
Key Concept
Maintaining static friction and preventing drive-wheel spin during initial vehicle movement on snow and ice.
Estimated Time:45s