From your position you observe a rotating white and green light to the north. This light is most likely().
A、at an airport
B、on a naval mine-countermeasures vessel
C、Block Island North Light
D、on a vessel engaged in public safety activity
A、at an airport
B、on a naval mine-countermeasures vessel
C、Block Island North Light
D、on a vessel engaged in public safety activity
A、A.From every fix or running fix B、B.From every estimated position C、C.Every three minutes in pilotage waters D、D.Only in pilotage waters
A、the equator to the elevated pole B、your horizon to your zenith C、your zenith to the elevated pole D、the geographical position of the Sun to the elevated pole
A、apply left rudder B、throw the crew member a life preserver C、begin backing your engines D、position your vessel to windward and begin recovery
A、Loading weight on deck B、Discharging weight from lower decks C、Shifting weight from upper to lower decks D、Shifting weight from lower to upper decks
A、A.apply left rudder B、B.throw the crew a life preserver C、C.begin backing your engines D、D.position your vessel to windward and begin recovery
A、complete the stroke,hold your oar out from the boat and level with the water B、dip the blade of your oar into the water and leave it there C、lift your oar to a vertical position D、complete the stroke,raise your oar slightly,swing it forward,and place it in the boat