Driver Knowledge Tests

What is traction control?

Traction control is a method used in vehicles to stop the drive wheels from spinning. The drive wheels are the wheels that are powered by the motor. Traction control serves two main purposes: Stop the driver losing control Reduce unnecessary tyre

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Posted in Advice

Oversteer, understeer, hydroplaning and wheelspin: skidding explained

A skid is when your tyres lose traction with the surface they are on. Whenever you drive your vehicle your tyres are subjected to forces that try to make them skid: Acceleration – your wheels will try to spin Braking – your wheels

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Posted in Advice, Car, Heavy Vehicle, Motorbike

Why advice on skidding could be outdated and dangerous

It used to be that you would see a lot of skid marks on the road. Now you see very few. Three types of action causes tyre marks on the road: Wheel lockup due to too much braking force applied

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Posted in Advice, Car, Heavy Vehicle, Motorbike