A.keep a line from fraying
B.join lines of unequal size
C.stop off a line
D.shorten a line
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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
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
最新試題
A “sheepshank” is used to（）.
A “fifteen-pound” CO2 extinguisher is so called because（）.
A “l(fā)oose” tow may cause all of the following EXCEPT（）.
A “figure eight” knot is used to（）.
A backlash below a lock is defined as a（）.
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 “l(fā)iner” in riveted construction of a vessel is a(n)（）.
A change of a documented vessel’s name can only be made by the（）.
A chain bridle is preferable to a wire rope towing bridle on a long ocean tow because chain（）.
A chart projection depicting the poles and a small area on either side of a connecting meridian，that is sometimes used for star charts，is the（）.