A.is used mostly by towing vessels
B.has a maximum depth of 14 feet (4.3 meters) at MHW
C.West Gap has a controlling depth of 24 feet
D.is entered through the East Gap or the West Gap
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A.installing rat guards on the mooring lines when in port
B.keeping foods protected and avoiding the accumulation of garbage
C.eliminating possible living spaces for rats when the ship is constructed
D.trapping and/or poisoning the rats
A.Greenish
B.Bluish
C.Grey
D.Grey-white
A.around the rudder and screws
B.completely around the vessel
C.to leeward of the vessel
D.to windward of the vessel
A.11 seconds
B.15 seconds
C.20 seconds
D.22 seconds
A.gear extending from the side or stern
B.gear that restricts maneuverability
C.less than 50 percent trolling lines
D.None of the above
A.The faying surfaces are coated with white lead (or similar product) before the rivets are set
B.A sealing weld bead of 1/8 or less pitch is run along the plate edge
C.The plate edge is split close to an adjacent plate and mechanically forced into contact with the adjacent plate
D.A properly riveted joint will be watertight; any leakage is stopped by setting up on the rivets
A.vessel includes seaplanes
B.seaplane includes non-displacement craft
C.vessel engaged in fishing includes a vessel fishing with trolling lines
D.vessel restricted in her ability to maneuver includes fishing vessels
A.Floating
B.Sailing
C.Drifting
D.Running into danger
A.vessel trolling
B.mineclearing vessel
C.trawler
D.vessel engaged in replenishment at sea
A.bow to the wind
B.beam to the wind
C.stern to the wind
D.with the wind on the quarter
最新试题
What indicates that a tropical cyclone may be within 500 to 1，000 miles of your position?（）
Which change in the condition of the seas could indicate the formation of a tropical storm or hurricane several hundred miles from your location? （）
That half of the hurricane to the right hand side of its track (as you face the same direction that the storm is moving) in the Northern Hemisphere is called the（）.
When running before a heavy sea，moving weights aft will affect the handling of a vessel by （）.
The time required to incline from bow down to stern down and return to bow down again is called（）.
The distance that a ship moves forward with each revolutionof its propeller，if there is no slip，is called（）.
Multi-year ice is the hardest sea ice and should be avoided if possible. It is recognizable because of what tone to its surface color? （）
The distance between rivets in a row is known as the（）.
If your vessel has a GM of one foot and a breadth of 50 feet，what will be your full rolling period? （）
Which statement is TRUE concerning hawser towing? （）