Home / Newfoundland and Labrador / Questions / Emergency Situations Emergency Situations Report A sign reading 'EMERGENCY VEHICLES' may mean: A Construction B Emergency vehicles may enter or cross — slow and yield C Police patrol D Ambulance station only Show Answer & Explanation Correct Answer: B. Emergency vehicles may enter or cross — slow and yield Reduce speed, be ready to yield. Next More Emergency Situations Questions Stopped at red; emergency approaches behind with siren: Fog — see only 50 m: Blowout at night on NL TCH Hwy 1: Behind snow plow: Oncoming snow plow: Often Missed All Newfoundland and Labrador Questions Smart Practice Mock Exam Road Signs Guide