[单选题] The air-conditioner is running in the winter and to be stopped, we should ____.

1、[单选题]The abbreviation "GM" is used to represent the _____.

• A、height of the metacenter
• B、 fighting arm
• C、 righting moment
• D、 metacentric height

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2、[单选题]A segregated ballast system is a system where _____.

• A、all ballast is processed through the oily water separator
• B、 ballast is taken on and discharged through a separate main deck riser
• C、 ballast and cargo tanks are separated by cofferdams
• D、 all ballast lines, tanks, and pumps are independent of those used for oil

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3、[单选题]At an unsheltered anchorage the chief engineer officer shall consult with the master whether or not to maintain an underway watch“An underway watch” means______.

• A、a watch which is kept with lower standard
• B、 a watch which is kept when the ship isnt sailing
• C、 a watch which is kept when the ship is sailing
• D、 a watch which is kept when the ship is in a restricted visibility area

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4、[单选题]When the ship security alert system is activated, it shall not .

• A、initiate a ship-to-shore security alert
• B、 transmit a ship-to-shore security alert
• C、 initiate an alert identifying the ship, its location
• D、 raise a security alarm on-board the ship indicating that the ship is under threat

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5、[单选题]According to Annex V of MARPOL 73/78, the dunnage, lining and packing materials whichwill float can be discharged when the ship is more than______away from the nearest land.

• A、3 n mile
• B、 5 n mile
• C、 12 n mile
• D、 25 n mile

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