A.ballasting
B.deballasting
C.disconnecting
D.hanging off
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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
A.advance
B.head reach
C.pitch
D.transfer
A.advance
B.head reach
C.pitch
D.transfer
A.arm
B.pitch
C.gage
D.rivet distance
A.one engine and a steering oar
B.both engines at the same speed
C.one engine at a time
D.one engine running at reduced speed and controlling the vessel with the other
A.low and bare，but the land back of it is high and wooded
B.composed of low to medium rolling hills
C.well defined with rocky outcroppings
D.marked by high，barren hills
A.pitching
B.rolling
C.heaving
D.swaying
A.windward side
B.leeward side
C.safe semicircle
D.dangerous semicircle
最新试题
The time required to incline from bow down to stern down and return to bow down again is called（）.
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? （）
The preferred method of controlling external bleeding is by（）.
Which characteristic is a disadvantage of a controllable- pitch propeller as compared to a fixed-pitch propeller? （）
The BEST way to steer a twin-screw vessel if you lose your rudder is by using（）.
The distance that a ship moves forward with each revolutionof its propeller，if there is no slip，is called（）.
Which is TRUE of a stiff vessel? （）
When the period of beam seas equals the natural rolling period of a vessel，what will most likely occur?（）
When preparing a ship for heavy weather，fuel oil day tanks should be（）.
To prevent damage by and to storage batteries aboardsmall passenger vessels they should be located（）.