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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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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

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

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