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
The vertical movement of a vessel in the water is called（）.
When taking soundings on a floating ship，the tape should be lowered and brought back quickly to（）.
Which statement is TRUE concerning hawser towing? （）
The distance between rivets in a row is known as the（）.
Which characteristic is a disadvantage of a controllable- pitch propeller as compared to a fixed-pitch propeller? （）
Which change in the condition of the seas could indicate the formation of a tropical storm or hurricane several hundred miles from your location? （）
Which statement is TRUE of a stiff vessel? （）
The forward movement of a ship in one revolution of its propeller is measured by（）.
The distance that a ship moves forward with each revolutionof its propeller，if there is no slip，is called（）.
What indicates that a tropical cyclone may be within 500 to 1，000 miles of your position?（）