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
最新試題
Which statement concerning maneuvering in restricted visibility is FALSE?（）.
When the period of beam seas equals the natural rolling period of a vessel，what will most likely occur?（）
The principal action in changing from transit to survival draft in the event heavy weather threatens is（）.
The main reason a long towline is used during an oceantow is that（）.
The forward movement of a ship in one revolution of its propeller is measured by（）.
What indicates that a tropical cyclone may be within 500 to 1，000 miles of your position?（）
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? （）
Which will NOT reduce yawing of a tow?（）
Which statement is TRUE concerning a towing vessel which，due to the nature of her work，is unable to keep out of the way of another vessel?（）
Which is TRUE of a stiff vessel? （）