单项选择题
How do you determine the weight of the vessel that is supported by the ground when a vessel has run aground?（）
A.This requires extensive calculation and is usually performed only by a naval architect not by a ship's officer
B.Determine the point where aground and the draft at that point，then calculate it using the grounding formula
C.Use the hydrostatic tables and enter with the mean draft before grounding and the mean draft after grounding
D.Use the inclining experiment formula and substitute the change of trim for the angle of list
相关考题
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单项选择题
How do the height and location of a tug’s towing bitts relate to the danger of tripping?（）
A.The further forward and closer to amidships the more readily the tug will trip
B.Placement further aft permits more effective pulling，better steering and eliminates the danger of tripping
C.Installing the bitts down low lowers the center of gravity
D.The height and position of towing bitts has no significance -
单项选择题
How could lashing gear used aboard Ro-Ro vessels be stowed when not in use?（）
A.Drape along brackets
B.Hang vertically in a sheltered area
C.Stow in bins at hatch coming side
D.All of the above -
单项选择题
How can you estimate the position of a tropical storm’s center?（）
A.With a radio weather bulletin or weather fax
B.using shipboard radar
C.observe the wind direction and apply Buys Ballot's law
D.All of the above
