On a road without electric lights, when you switch from high beam to low beam, how should you be careful?

On a road without electric lights, when you switch from high beam to low beam, how should you be careful?

1. You should increase speed because you are in a hurry.
2. You should reduce speed because you cannot see far.
3. You do not need to reduce speed.

Correct answer

You should reduce speed because you cannot see far.

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.