Examkin

Soru

Zorluk: OrtaCoasting and Vehicle Control

While driving along a busy multi-lane road, a driver selects neutral several hundred yards before turning into a side street. Why does coasting in this manner compromise vehicle safety?

  1. A
    It instantly disengages the power steering and anti-lock braking system.
  2. It eliminates engine braking and delays the driver's ability to accelerate quickly if road conditions change.Cevap
  3. C
    It directly increases the driver's thinking distance by delaying hazard perception.
  4. D
    It automatically causes the drive wheels to lock up and send the car into a skid.

Cevap

Coasting eliminates engine braking and impairs the driver's ability to adjust speed or accelerate swiftly if a hazard develops.
According to Highway Code Rule 122, coasting reduces driver control because engine braking is eliminated. If an unexpected hazard occurs on approach to the junction, the driver cannot quickly accelerate out of danger and will have to spend crucial time selecting the correct gear.

Adım Adım Çözüm

1
Identify the driving action described in the scenario and its mechanical effect.
The driver has selected neutral while the vehicle is in motion, disconnecting the engine from the transmission.
According to Highway Code Rule 122, travelling in neutral or holding the clutch down is defined as coasting.
2
Analyse the impact of coasting on vehicle dynamics and driver control.
Without an engaged gear, natural engine braking is unavailable, placing total reliance on the footbrake and preventing immediate acceleration if a hazard emerges.
Maintaining an appropriate gear ensures the driver has full control to accelerate or decelerate smoothly.

Anahtar Kavram

Highway Code Rule 122: Vehicle control reduction and loss of engine braking caused by coasting
Tahmini Süre:45s
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Konular

Coasting and Vehicle Control

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