A.loss of maneuverability
B.lines to part
C.damage to the towing vessel and tow
D.a saving in the transit time
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A.small plate which fills the aperture between riveted strakes and the vessel framing
B.backing plate which is used to level the strakes while riveting，and then removed
C.internal frame to which the side shell is riveted
D.seam that is welded after riveting is completed
A.matching pulse rates of at least 20 stations
B.an automatic on-and-off switch
C.a horizontal matching of all delayed hyperbolic signals
D.automatic signal acquisition and cycle matching
A.be a stopper
B.shorten a line
C.join lines of equal size
D.keep a line from passing through a sheave
A.there are fifteen pounds of CO2 in the container
B.the container，when full，weighs fifteen pounds
C.the pressure at the discharge nozzle is l5 psi
D.the empty container weighs fifteen pounds
A.a safety line attached to a man working over the side
B.used to measure water depth
C.used to slow the headway of a barge
D.used to measure the overhead height of a bridge
最新試題
A casualty report of an intentional grounding of a ship is required under what condition?（）
A celestial body’s complete orbit around another body is（）.
A chart with a natural scale of 1:160，000 is classified as a（）.
A “figure eight” knot is used to（）.
A tonnage tax is levied according to the（）.
A crew member has suffered frostbite to the toes of the right foot. Which is NOT an acceptable first aid measure?（）
A block and tackle is “rove to advantage”. This means that the（）.
A vessel’s quarter is that section which is（）.
A crew member reports that the high-pressure alarm light of a low-pressure CO2 fixed fire extinguishing system is illuminated. The most probable cause of this condition would be that（）.
A “spring line” is（）.