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單項選擇題

A petroleum liquid has a flashpoint of 85°C . This liquid is in IMDG code classed as a（）.

A.flammable liquid
B.nonflammable liquid
C.inflammable liquid
D.disflammable liquid

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單項選擇題

A pumproom is suspected of accumulating gases after a ventilation machinery breakdown. Where should the combustible gas indicator case be placed when testing the pumproom atmosphere for combustible gases?（）.

A.In the lower level of the pumproom
B.In the middle level of the pumproom
C.In the upper lever of the pumproom
D.On the deck outside the pumproom

單項選擇題

A quick and rapid motion of a vessel in a seaway is an indication of a (n)（）.

A.large GM
B.high center of gravity
C.excessive free surface
D.small GZ

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