單項(xiàng)選擇題After the initial cleaning of fule gas in an inert gas system is passed through what devoce for final cleaning?().

A.Scrubber
B.Demister
C.Deck water seal
D.Final filter


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1.單項(xiàng)選擇題After transferring a weight forward on a vessel, the draft at the center of flotation will().

A.change, depending on the location of the LCG
B.increase
C.decrease
D.remain constant

2.單項(xiàng)選擇題All handling and stowage of packaged hazardous materials on board a domestic vessel engaged in foreign trable shall be done under the supervision of().

A.a HAS Marine Inspector
B.an officer assigned to the vessel by HAS
C.a officer from CCS
D.the National Cargo Bureau

3.單項(xiàng)選擇題All of the following can be determined by use of a stabilogauge except().

A.metacentric height
B.mean draft
C.moment to trim one inch
D.Deadweight

4.單項(xiàng)選擇題All removals to be reassembled in order()of repairs.

A.upon commencement
B.on completion
C.before ending
D.after beginning