Lighting and Optical Signals
When is lighting considered insufficient for driving?
Reviewed on 22 Jul 2026
- A When the centre line of the road cannot be seen
- ✓ When you cannot read a number plate at 10 m nor distinguish a dark vehicle at 50 m
- C When the sun is below the horizon
- D When other vehicles' headlights are on
Why this is the correct answer
Lighting is considered insufficient when you cannot read a number plate from 10 metres or distinguish a dark-coloured vehicle from 50 metres away.
More questions on Lighting and Optical Signals
- Is it mandatory to switch on the lighting when passing through a tunnel?
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- Should lighting be used when driving on a reversible lane or a lane in the opposite of its usual direction?
- What do a vehicle's position lights indicate?
- What colour are the position lights at the rear of the vehicle?
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