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
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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
A.join lines of equal size
B.form a temporary eye (loop) at the end of a line
C.be a stopper
D.keep a line from fraying
A.you can stop within your visibility range
B.you can take proper and effective action to avoid collision
C.you are traveling slower than surrounding vessels
D.no wake comes from your vessel
最新試題
A “Mediterranean moor” should be used when（）.
A vessel’s quarter is that section which is（）.
A “fifteen-pound” CO2 extinguisher is so called because（）.
A “sheepshank” is used to（）.
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 “check” line is（）.
A CO2 extinguisher on a ship which has lost 10% of its charge must be（）.
A crew member is having an epileptic convulsion. You should（）.
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（）.