A.pitch
B.sway
C.heave
D.roll
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A.rolling period
B.amplitude moment
C.inclining moment
D.pitching period
A.ballasting
B.deballasting
C.disconnecting
D.hanging off
A.direct pressure on the wound
B.elevating the wounded area
C.pressure on a pressure point
D.a tourniquet above the wound
A.angle that the propeller makes with a free stream of water
B.angle that the propeller makes with the surface of the water
C.number of feet per revolution the propeller is designed to advance in still water without slip
D.positive pressure resulting from the difference of the forces on both sides of the moving propeller in still water without slip
A.a margin of safety is provided should the line part
B.the towline will wear more evenly
C.there will be less stress on the towline
D.a slight increase in speed will be realized
最新試題
When the period of beam seas equals the natural rolling period of a vessel，what will most likely occur?（）
The distance between rivets in a row is known as the（）.
Which change in the condition of the seas could indicate the formation of a tropical storm or hurricane several hundred miles from your location? （）
Multi-year ice is the hardest sea ice and should be avoided if possible. It is recognizable because of what tone to its surface color? （）
When preparing a ship for heavy weather，fuel oil day tanks should be（）.
The preferred method of controlling external bleeding is by（）.
The time required to incline from bow down to stern down and return to bow down again is called（）.
Which statement is TRUE concerning hawser towing? （）
Which is TRUE of a stiff vessel? （）
One method of controlling rats on vessels is by rat-proofing. Rat-proofing is accomplished by （）.