A.comes directly over the bow
B.comes directly over the stern
C.comes over an area extending from broad on the bow to the quarter
D.has no effect on the vessel
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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
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
最新試題
A conscious victim who has suffered a blow to the head has symptoms that indicate the possibility of concussion. If the patient feels no indication of neck or spine injury，recommended treatment would include（）.
A “l(fā)oose” tow may cause all of the following EXCEPT（）.
A chart with a natural scale of 1:160，000 is classified as a（）.
A “spring line” is（）.
A chain bridle is used when towing astern because it（）.
A “sheepshank” is used to（）.
A “figure eight” knot is used to（）.
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 chart position enclosed by a square is a(n)（）.
A crew member is having an epileptic convulsion. You should（）.