For what purpose may the blue beacons of a stationary special vehicle be switched on without a siren?

Question

KET Užduotys · Accepted Answer

Correct answer: To warn road users of a hazard to road safety.. Explanation: The blue beacons of a stationary special vehicle, used without a siren, warn others of a hazard to road safety. That might be an accident scene, an obstacle, or work being carried out. When you see such a beacon, be extra alert and slow down if needed.. KET reference: KET 187: a stationary special vehicle's blue beacons without a siren warn of a hazard.