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Difficulty: EasySkidding Causes and Correction

What is the safest way to avoid skidding when driving on a road covered with packed snow or ice?

  1. A
    Maintain a standard two-second following distance behind the vehicle ahead
  2. Drive slowly in the highest gear possible and use smooth, gentle control inputsAnswer
  3. C
    Apply firm and continuous pressure to the footbrake before steering sharply around bends
  4. D
    Coast downhill with the clutch pedal fully depressed to let the vehicle roll freely

Answer

Drive slowly in the highest gear possible and use smooth, gentle control inputs
Driving slowly in the highest gear practical reduces wheel torque and prevents wheel spin on slippery surfaces. Using smooth, progressive inputs on the steering wheel, accelerator, and brakes preserves tyre adhesion and prevents skidding.

Step-by-Step Solution

1
Assess the severe reduction in tyre grip caused by packed snow or ice.
Recognise that sudden forces applied through braking, acceleration, or steering will easily break traction.
Tyre friction on ice is extremely low compared to dry tarmac, making smooth handling essential.
2
Select a higher gear than normal while keeping speed low.
Lower engine revs and reduced wheel torque minimise the risk of wheel spin when applying power.
Driving in the highest gear possible delivers smooth, controlled power to the driven wheels.
3
Operate all foot pedals and the steering wheel progressively and gently.
The vehicle maintains directional stability without inducing a skid.
Sudden or aggressive driver inputs are the primary cause of skidding on slippery road surfaces.

Key Concept

Skid prevention in icy and snowy conditions using smooth vehicle controls and appropriate gear selection
Estimated Time:45s
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Topics

Skidding Causes and Correction

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