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
Which statement is TRUE concerning hawser towing? （）
One method of controlling rats on vessels is by rat-proofing. Rat-proofing is accomplished by （）.
The angular movement of a vessel about a horizontal line drawn from its bow to its stern is （）.
When preparing a ship for heavy weather，fuel oil day tanks should be（）.
The distance between rivets in a row is known as the（）.
When the period of beam seas equals the natural rolling period of a vessel，what will most likely occur?（）
The BEST way to steer a twin-screw vessel if you lose your rudder is by using（）.
Point Judith Harbor of Refuge（）.
When a vessel is swinging from side to side off course due to quartering seas，the vessel is （）.
Which change in the condition of the seas could indicate the formation of a tropical storm or hurricane several hundred miles from your location? （）