A.be a stopper
B.shorten a line
C.join lines of equal size
D.keep a line from passing through a sheave
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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
A.ferries
B.passenger liners
C.cruise ships
D.ocean going vessels
最新試題
A CO2 extinguisher on a ship which has lost 10% of its charge must be（）.
A chart with a natural scale of 1:160，000 is classified as a（）.
A “figure eight” knot is used to（）.
A celestial body’s complete orbit around another body is（）.
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 chain bridle is preferable to a wire rope towing bridle on a long ocean tow because chain（）.
A ballasted vessel sinks enroute to a dry dock. Under these circumstances，the vessel’s owner can claim（）.
A chart with a scale of 1:80，000 would fall into the category of a（）.
A celestial body will cross the prime vertical circle when the latitude is numerically（）.
A “spring line” is（）.