單項(xiàng)選擇題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


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1.單項(xiàng)選擇題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

2.單項(xiàng)選擇題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

3.單項(xiàng)選擇題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

4.單項(xiàng)選擇題How can the Coast Guard determine that a crew member is “able to understand any order spoken by the officers”?（）

A.Require a demonstration by the officer and the crew member
B.Require a written test
C.Require that an interpreter be provided
D.All of the above

5.單項(xiàng)選擇題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