A.joint account
B.separate account
C.unique account
D.proper charter
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A.celestial meridian
B.celestial equator
C.celestial horizon
D.principal vertical circle
A.shown below the stern light
B.white in color
C.displayed at the masthead
D.a yellow light having the same characteristics as the stern light
A.If one screw is stopped，the ship will turn toward the side of the stopped screw
B.The principal force which turns the ship is set up by the wake against the forward side of the rudder
C.Turning response by use of the rudder only is greater than on a single-screw vessel
D.With the rudder amidships，the ship will steer a fairly steady course
A.cross connection line between two main fire lines
B.special wrench for the couplings in a fire hose line
C.tackle rigged to support a fire hose
D.None of the above
A.transmit the thrust of the engine to the propeller
B.transmit the thrust of the propeller to the vessel
C.absorb the shock of wave pressure at the bow
D.be placed between the engines and the foundation to absorb the vibration
A.towed sideways by an overwhelming force on the towline
B.her tow moves parallel to and forward on either side of the tug
C.the tow is no longer directly astern but moves up on her quarter
D.All of the above
A.over the bow or stern of a vessel
B.over the flat sides of a vessel
C.over the open water
D.over the dockside
A.altostratus
B.stratus
C.cumulus
D.cirrus
A.the weight of its tow，its being anchored，or grounded
B.the weight of its towing hawser on the bottom
C.an adverse current
D.lack of power or an engine breakdown
A.The moment of inertia would remain unchanged
B.The moment of inertia would be 1/4 its original value
C.The moment of inertia would be 1/2 the original value
D.None of the above
最新試題
A tank 36 ft. by 36 ft. by 6 ft. is filled with water to a depth of 5 ft. If a bulkhead is placed in the center of the tank running fore-and-aft along the 36-foot axis，how will the value of the moment of inertia of the free surface be affected?（）
A tow that is properly aligned to pass through a narrow opening between two bridge piers is “ （）”.
A slow，gradual fall of the barometer indicates approaching（）.
A time diagram is a diagram of the celestial sphere as observed from above the（）.
A tug is “in irons” when held in a fixed position by（）
A stretch where the channel changes from one side of the river to the other is called a （）.
A traffic separation zone is that part of a traffic separation scheme which（）.
A vertex of the navigational triangle is NOT located at the（）.
A towline should be fastened to（）.
A thrust block is designed to（）.