[单选题] The two most common gases used in pneumatic system are ________.

1、[单选题]In the ISM code, “company” doesnt mean .

• A、the ship owner
• B、 the manager or bareboat charterer
• C、 a person assuming the responsibility for ship operation
• D、 a business enterprise dealing with freight

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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]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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4、[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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5、[单选题]The MARPOL Convention is the main international convention .

• A、about marine pollution prevention
• B、 covering marine protection of life
• C、 about marine
• D、 about ship and port security

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