Home / Nova Scotia / Questions / Rules of the Road Rules of the Road Report Fog lights should be used: A Always B In fog, heavy rain, or snow to supplement low beams C Only on highways D To look cool Show Answer & Explanation Correct Answer: B. In fog, heavy rain, or snow to supplement low beams Aimed low and wide to illuminate road edges. Previous Next More Rules of the Road Questions Tailgating in NS can result in: The minimum safe following distance in dry conditions is: Recommended following distance on icy NS roads: Minimum signal distance before changing lanes on a highway in NS: Before changing lanes a driver should: Often Missed All Nova Scotia Questions Smart Practice Mock Exam Road Signs Guide