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
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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
最新試題
Which statement is TRUE concerning hawser towing? （）
When a vessel is swinging from side to side off course due to quartering seas，the vessel is （）.
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（）.
The BEST way to steer a twin-screw vessel if you lose your rudder is by using（）.
Which will NOT reduce yawing of a tow?（）
In order to benefit from the use of storm oil in heavy seas，the storm oil should be spread （）.
Which characteristic is a disadvantage of a controllable- pitch propeller as compared to a fixed-pitch propeller? （）
When running before a heavy sea，moving weights aft will affect the handling of a vessel by （）.
The main reason a long towline is used during an oceantow is that（）.
To prevent damage by and to storage batteries aboardsmall passenger vessels they should be located（）.