[单选题] The majority of automatic mooring winches are spur geared to improve the backward efficiency of the gear train for rendering

1、[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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2、[单选题]According to Annex I of MARPOL 73/78, oily waste from cargo tanks of oil tankers can be discharged when the ship is more than_________ away from the nearest land.

• A、50 nautical miles
• B、 30 nautical miles
• C、 15 nautical miles
• D、 12 nautical miles

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3、[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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4、[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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5、[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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