A.in a straight line
B.to port
C.from side to side
D.to starboard
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A.reverse port engine，apply right rudder
B.reverse port engine，rudder amidships
C.reverse starboard engine，apply right rudder
D.reverse starboard engine，rudder amidships
A.Length of the towline
B.Height of the towline connection
C.Longitudinal position of the towline connection
D.Direction of opposing force
A.comes directly over the bow
B.comes directly over the stern
C.comes over an area extending from broad on the bow to the quarter
D.has no effect on the vessel
A.the man has been missing for a period of time
B.the sea water is very cold and the man is visible
C.there is thick fog
D.the wind was from astern on the original course
A.correct trim will be obtained more easily
B.drag effect will be cancelled out
C.side forces will be eliminated
D.speed will be increased
最新試題
In towing it is desirable for the tug and the vessel to ride wave crests simultaneously because（）.
In towing，heaving lines are used for（）.
A vessel towing astern in an operation which severely restricts the towing vessel and her tow in their ability to change course shall，when making way，exhibit（）.
In order to back a right-handed，single-screw vessel in a straight line，you will probably need to use（）.
The effect known as bank cushion acts in which of the following ways on a single-screw vessel proceeding along a narrow channel? （）
In a following sea，a wave has overtaken your vessel and thrown the stern to starboard. To continue along your original course，you should（）.
At night，a vessel shall indicate that she is restricted in her ability to maneuver by showing in a vertical line two（）.
A vessel，which is unable to maneuver due to some exceptional circumstance，shall exhibit （）.
Catenary as applied to tow lines denotes the（）.
It is easier to dock a right-hand，single-screw vessel（）.