Driving theory questions

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What should the driver in the picture do as soon as possible after the water pool?

  • Incorrect: Stop and let the car’s essential components dry.
  • Incorrect: Depress the accelerator in neutral to clear the water from the engine.
  • Correct: Test the brakes to clear moisture from the braking system.
  • Incorrect: Check so that the tyres have not succumbed to aquaplaning.

Always test the brakes after driving through water pools. […] In doing so, the brakes are heated and the moisture dries.” (Driving Licence Book, 19th Edition, page 131)

Aquaplaning is nothing that tyres can get afterwards (like a puncture), which rules out this option. Stopping and letting the car “dry” is unreasonable and impractical.

The engine’s essential components are watertight and protected. The brakes are not as protected, however, particularly if they are disc brakes. Water between the brake shoe and brake disc causes deteriorated friction, which leads to diminished braking effect.


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