A.when anchoring in the Mediterranean
B.when docking stern to a berth
C.when docking bow to a berth
D.when anchoring in a strong current
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A.loss of maneuverability
B.lines to part
C.damage to the towing vessel and tow
D.a saving in the transit time
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
最新試題
A “l(fā)oose” tow may cause all of the following EXCEPT（）.
A “reaching” course is one in which the wind（）.
A celestial body’s complete orbit around another body is（）.
A crew member is having an epileptic convulsion. You should（）.
A crew member has suffered frostbite to the toes of the right foot. Which is NOT an acceptable first aid measure?（）
A chart with a scale of 1:80，000 would fall into the category of a（）.
A “fifteen-pound” CO2 extinguisher is so called because（）.
A CO2 extinguisher on a ship which has lost 10% of its charge must be（）.
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 block and tackle is “rove to advantage”. This means that the（）.