When driving with high beams on an unlit road, what precautions must you take when switching to low beams?

When driving with high beams on an unlit road, what precautions must you take when switching to low beams?

1. I must speed up because I am in a hurry
2. I must slow down because my forward visibility is reduced
3. It is not necessary for me to slow down

Correct answer

I must slow down because my forward visibility is reduced

This is the correct answer for the Cambodian driving theory test. Questions are drawn from the official Ministry of Public Works and Transport sign library and road rules.