Home / New Brunswick / Questions / Emergency Situations Emergency Situations Report Dense fog — can see only 50 m: A Keep 100 km/h B Reduce to speed where you can stop in visible distance C Maintain speed D Speed up Show Answer & Explanation Correct Answer: B. Reduce to speed where you can stop in visible distance Rear-end collisions common. Previous Next More Emergency Situations Questions A sign reading 'EMERGENCY VEHICLES' may mean: A blue sign with a phone icon on a highway means: Approaching bridge deck in late fall — wet-looking dark patches: Hwy 2 is snow-covered and plows working: Fog so dense you see only 20 m: Often Missed All New Brunswick Questions Smart Practice Mock Exam Road Signs Guide