You are traveling upstream on a river at dusk. You see a buoy with the number 4 and a flashing red light. What should you do?
Keep the buoy on your starboard (right) side.
You go inside that space that has the bouy and stay to the port-side of the bouy.
Keep the buoy on your starboard side as you enter the harbor.
lp
Have the bout on your right
no
keep the buoy on the starboard side
When going upstream, a buoy with a number 5 and flashing green light indicates the presence of a dam ahead. The dam may be used to generate hydroelectric power or to provide water for irrigation, and can pose a danger to boats and other vessels.
Since this is a Green Lighted Buoy sighted while approaching a harbour,this is a Lateral port hand side mark, IALA region B. To keep this buoy on your port side while travelling upstream.
it doesn't indicate anything, aside from the fact that the buoy is there. the light simply makes it more visible in foggy or dark conditions.
entering a harbor from the open sea, ther is a lighted buoy bearing the number 6, how should i pass it
As you enter a harbor from the open sea, you see a lighted buoy bearing the number 3. How should you pass it?