Anticipating traffic helps avoid unnecessary acceleration and hard braking.
Lesson 11
Defensive & ecological driving
Essential rules, explained step by step.
Educational difficulty is separate from the legal penalty. These are original practice questions, not official examination items.
Rear fog lights
When fitted, rear fog lights must be used in fog or snowfall reducing visibility to less than about 100 metres, and in heavy rain. Do not use them in other conditions: their brightness can dazzle following drivers.
Regulatory source ↗
Remove an unused roof rack to reduce aerodynamic drag and fuel use.
Look well ahead and plan a safe escape space.
In fog, reduce speed and use appropriate lights rather than relying on the vehicle ahead.
Respecting tyre-pressure recommendations helps safety and efficient fuel use.
Regulatory source ↗Reviewed 2026-11-02
Apply the lesson · 4
Fog reduces visibility to about 70 metres. Rear fog lights are fitted but off. Which lighting change is required?
- Switch off the rear fog lights; the triggering conditions have ended.
- Change from high beam to dipped headlights to avoid dazzling.
- Use the rear fog lights and adapt speed and following distance.
Show the answer and explanation
Correct answer: C
The need for fog lighting depends on actual conditions. High beam must not dazzle. Posted maxima never remove the duty to adapt speed to visibility and grip.
Regulatory source ↗Rear fog lights were used in dense fog. It has cleared; no snow or heavy rain remains. Which change is needed?
- Switch off the rear fog lights; the triggering conditions have ended.
- Change from high beam to dipped headlights to avoid dazzling.
- Reduce speed further; a posted limit is not a safe-speed target in poor visibility.
Show the answer and explanation
Correct answer: A
The need for fog lighting depends on actual conditions. High beam must not dazzle. Posted maxima never remove the duty to adapt speed to visibility and grip.
Regulatory source ↗At night you use high beam on an unlit road. An oncoming driver is being dazzled. Which beam change is needed now?
- Reduce speed further; a posted limit is not a safe-speed target in poor visibility.
- Change from high beam to dipped headlights to avoid dazzling.
- Use the rear fog lights and adapt speed and following distance.
Show the answer and explanation
Correct answer: B
The need for fog lighting depends on actual conditions. High beam must not dazzle. Posted maxima never remove the duty to adapt speed to visibility and grip.
Regulatory source ↗The sign permits 90, but rain and visibility make it impossible to stop safely within the visible clear distance at that speed. What must guide speed?
- Use the rear fog lights and adapt speed and following distance.
- Switch off the rear fog lights; the triggering conditions have ended.
- Reduce speed further; a posted limit is not a safe-speed target in poor visibility.
Show the answer and explanation
Correct answer: C
The need for fog lighting depends on actual conditions. High beam must not dazzle. Posted maxima never remove the duty to adapt speed to visibility and grip.
Regulatory source ↗