When is a driver of a motor vehicle required to dip the vehicle’s lights?

1. Correct answer: When driving towards another vehicle that is driving on the same road or in an adjacent road.
2. When driving in a steep slope only.
3. When the vehicle in front of him turns right.
4. When the vehicle behind him turns right.

WhySwitch to low beam when a vehicle is coming toward you on your road or an adjacent one. High beams would blind its driver.