A vehicle being used for the removal of snow from a roadway must be equipped with a

  1. flashing red light.
  2. flashing green light.
  3. flashing blue light. ✓
  4. flashing amber light.

Answer: C. flashing blue light.

A vehicle used for removing snow from a roadway must have a flashing blue light.

Why this is the answer

The truck handbook passage on snow plows says snow-removal vehicles on public roadways are equipped with flashing blue lights that can be seen from 150 metres. It also explains that these blue lights warn drivers of wide, slow-moving vehicles. That direct statement matches the bank answer, so the required equipment is the flashing blue light, not the red lights used by emergency vehicles.

Why the other answers are wrong

Remember it

Link snow clearing with blue: when a vehicle is clearing the road, think flashing blue.

Official handbook: Official MTO Truck Handbook, Driving at night and in bad weather – Snow plows

Explanation drafted with AI (deepseek-flash) from the official handbook passage cited above, then checked automatically and by a second model on 2026-10-23. Always confirm with the official handbook.