[单选题] The main objective of the SOLAS Convention is .

1、[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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2、[单选题]According to Annex I of MARPOL 73/78, the instantaneous discharging rate of the oily waste from cargo tanks of oil tankers must be lower than .

• A、30 liters per nautical mile
• B、 15 liters per nautical mile
• C、 30 ppm
• D、 15ppm

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3、[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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4、[单选题]New adopted regulation of master shall_____when maintaining the security of the ship.

• A、take actions by he company’ s order
• B、 take actions by the ship owner’ s order
• C、 exercise his professional judgment
• D、 exercise his professional judgment but be constrained by the company

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5、[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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