A.velocity of the current
B.bottom characteristics
C.depth of the water
D.speed over the ground
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A.speed being made good
B.speed through the water
C.the set of the current
D.the depth of the water
A.at all times
B.in the bottom return mode
C.in the volume reverberation mode
D.only when there is no current
A.has left hand twist
B.has inside threads on both ends
C.has outside threads on both ends
D.takes two men to operate
A.dead reckoning
B.pilotage
C.great circle sailing
D.geographic navigation
A.blows the fire back toward the vessel
B.comes over the bow
C.comes over the stern
D.comes over either beam
最新試題
Which of the following shall not the officers in charge of the navigational watch do?（）
（）is the act of allocating space to containers on board of a container ship in the order of the discharge ports.
The circulation around a low pressure center in the Northern Hemisphere is（）.
According to the relevant regulation, lifeboat should be powered by（）.
Your vessel is docking, but not yet alongside. Which line will be the most useful when maneuvering the vessel alongside the pier?（）.
（）is halfway between the forward and after perpendiculars and is reference point for vessel construction.
Shipboard Emergency Drills must be carried out at least（）on board cargo ship.
Fog is likely to occur when there is little difference between the dew point and the（）.
How long are you prohibited to consume alcohol prior to serving as a member of a watch?（）
It is dangerous for vessels without the operational radar（）the estuary.