[单选题] In order to culture and propagate enough bacteria to treat the body and galley wastes____

1、[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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2、[单选题]Which of the followings is not an indication of a bad maintenance? _____________.

• A、a pipe with welded connections
• B、 a pipe with several clips
• C、 a cement box
• D、 a leaking valve

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3、[单选题]Which of the following about ISM Code is not right? .

• A、It aims to ensure safety at sea
• B、 It aims to avoid damage to the environment
• C、 It aims to prevent human injury or loss of life
• D、 It aims to provide a method to run a company

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4、[单选题]According to Annex IV of comminuted and disinfected sewage using an approved system 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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5、[单选题]An oil in water monitor is required in order to measure _____.

• A、the oil content in water
• B、 the water content in fuel oil
• C、 the water level in bilge well
• D、 the oil level in bilge well

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