单项选择题

In order to benefit from the use of storm oil in heavy seas，the storm oil should be spread （）.

A.around the rudder and screws
B.completely around the vessel
C.to leeward of the vessel
D.to windward of the vessel

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单项选择题

If your vessel has a GM of one foot and a breadth of 50 feet，what will be your full rolling period? （）

A.11 seconds
B.15 seconds
C.20 seconds
D.22 seconds

单项选择题

If a vessel is engaged in fishing according to the definitions in the Rules，it will have （）.

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

单项选择题

How are riveted lap joints made watertight?（）

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