Home / Nova Scotia / Questions / Rules of the Road Rules of the Road Report Drinking coffee reduces a driver's BAC: A Yes — coffee sobers you B No — time is the only factor C Yes if strong D Only black coffee Show Answer & Explanation Correct Answer: B. No — time is the only factor Caffeine may increase alertness but not sobriety. Previous Next More Rules of the Road Questions Dim high beams when an oncoming vehicle is within: Dim high beams when following within: Headlights must be on in NS: Daytime running lights (DRL) at night are: Hazard lights should be used when: Often Missed All Nova Scotia Questions Smart Practice Mock Exam Road Signs Guide