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 “l(fā)iner” in riveted construction of a vessel is a(n)（）.
A “reaching” course is one in which the wind（）.
A continual worsening of the list or trim of any floating ship indicates（）.
A block and tackle is “rove to advantage”. This means that the（）.
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 casualty report of an intentional grounding of a ship is required under what condition?（）
A vessel’s quarter is that section which is（）.
A backlash below a lock is defined as a（）.
A chart with a natural scale of 1:160，000 is classified as a（）.
A common class of wire rope used for mooring is the 6x19 class. What does the 6 represent?（）