When does the law require lights on vehicles to be turned on?
- Between sunset and sunrise
- There is no specified time
- Between dusk and dawn and any other time you cannot see clearly for a distance of 150m
- Between half an hour before sunset to half an hour after sunrise and at any other time you cannot see clearly for a distance of 150m ✓
Answer: D. Between half an hour before sunset to half an hour after sunrise and at any other time you cannot see clearly for a distance of 150m
The law requires lights between half an hour before sunset and half an hour after sunrise, and whenever you cannot see clearly for 150 metres.
Why this is the answer
The handbook says headlights are required from one-half hour before sunset to one-half hour after sunrise. It also requires them in poor light such as fog, snow or rain when you cannot clearly see people or vehicles less than 150 metres away. That matches the choice giving both a time window and a visibility test. Other choices either leave lighting to no fixed time or use vague times like sunset-to-sunrise or dusk-to-dawn, which are not the rule stated in the handbook.
Why the other answers are wrong
- A. Between sunset and sunrise — Between sunset and sunrise is wrong because the handbook starts earlier and ends later, at one-half hour before sunset and one-half hour after sunrise.
- B. There is no specified time — There is no specified time is wrong because the handbook sets a specific time window plus a poor-visibility condition.
- C. Between dusk and dawn and any other time you cannot see clearly for a distance of 150m — Between dusk and dawn is wrong because the handbook uses one-half hour before sunset and one-half hour after sunrise, not dusk and dawn.
Remember it
Think of a half-hour halo around sunset and sunrise, plus a 150-metre visibility check.