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Question

Difficulty: MediumBraking Systems and ABS

An unexpected hazard suddenly obstructs your path, requiring an immediate emergency stop. How should you apply the footbrake if your vehicle is equipped with an anti-lock braking system (ABS)?

  1. A
    Pump the brake pedal rapidly on and off to prevent the road wheels from locking
  2. Press the footbrake firmly and continuously without releasing pressure until the vehicle comes to a complete haltAnswer
  3. C
    Apply light, progressive pressure while shifting into neutral to eliminate engine resistance
  4. D
    Pull the parking brake firmly while dabbing the footbrake intermittently

Answer

Press the footbrake firmly and continuously without releasing pressure until the vehicle comes to a complete halt.
When performing an emergency stop in a vehicle fitted with an anti-lock braking system (ABS), the driver should depress the brake pedal rapidly, firmly, and hold it down continuously until the vehicle has stopped completely. The electronic control unit automatically modulates braking pressure to each wheel to prevent locking, allowing the driver to maintain full steering control.

Step-by-Step Solution

1
Identify the emergency stopping requirement in an ABS-equipped car
Recognise that modern anti-lock brakes electronically regulate wheel lockup automatically.
ABS senses wheel rotation and modulates hydraulic pressure many times per second to prevent locked wheels.
2
Determine the appropriate pedal application technique
Apply immediate, maximum, and uninterrupted force to the footbrake pedal.
Continuous firm pressure ensures the system remains actively engaged throughout the entire stopping manoeuvre.
3
Maintain directional control while stopping
Steer around hazards if necessary without releasing pedal force.
ABS preserves tyre rotation, allowing the driver to steer under full braking.

Key Concept

Correct footbrake application technique during emergency stops in vehicles fitted with ABS
Estimated Time:45s
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Topics

Braking Systems and ABS

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