[单选题] ___ is (are) not power supplied by main switchboard directly.

1、[单选题]Which kind of vessel is not required to comply with the ISM code until 2002?

• A、Passenger ships and high-speed crafts of 500 gross tons or more
• B、 Oil tankers and Chemical tankers and Gas carriers
• C、 Bulk freight vessels
• D、 General cargo vessels

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2、[单选题]Which of the following statements describes one of the functions of the ballast system?

• A、To permit flooding of any fuel oil storage tank on any class of ship
• B、 To use it as a secondary service system
• C、 To store reserve feed or potable water for extended cruises
• D、 To stabilize the ship by flooding certain designed tanks with seawater

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3、[单选题]The SOLAS Convention is the main international convention .

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

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4、[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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5、[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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