When lights are required, drivers are required to switch to low beam headlights…?
- Within 300m of an oncoming vehicle
- Within 1 KM of an oncoming vehicle
- There is no set requirement
- Within 150 metres of an oncoming vehicle ✓
Answer: D. Within 150 metres of an oncoming vehicle
When lights are required, switch to low-beam headlights within 150 metres of an oncoming vehicle.
Why this is the answer
The handbook says to use low beams within 150 metres of an oncoming vehicle. It gives the same 150-metre figure for switching from high beams to low beams when a vehicle approaches. The point is to keep your lights from glaring into the other driver's eyes. Since the handbook states that distance directly, the choice that matches it is the one about 150 metres.
Why the other answers are wrong
- A. Within 300m of an oncoming vehicle — The handbook does not give 300 metres; it says to switch within 150 metres of an oncoming vehicle.
- B. Within 1 KM of an oncoming vehicle — One kilometre is far beyond the distance stated in the handbook, which uses 150 metres.
- C. There is no set requirement — The handbook does set a distance, so saying there is no set requirement contradicts it.
Remember it
Think of 150 as the glare limit: low beams before an oncoming vehicle gets closer than that.
Official handbook: Official MTO Driver's Handbook, Driving at night and in bad weather – Glare