According to the international regulat...

单项选择题According to the international regulations concerning the prevention of pollution of sea areas from ships, the disposal into the sea of all plastics is （）.

A.welcome
B.admitted in some special sea areas
C.prohibited
D.acceptable

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1.单项选择题（） shall be provided to every oil tanker of 150 tons gross tonnage and above to record relevant machinery space and cargo/ballast operations.

A.Oil Record Book Part Ⅰ
B.Oil Record Book Part Ⅱ
C.Oil Record Book Part Ⅰ or Part Ⅱ
D.Oil Record Book Part Ⅰ and Part Ⅱ

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2.单项选择题When making entries in the Oil Record Book, the date, operational code and item number shall be inserted in the appropriate columns and the required particulars shall be recorded （） in the blank spaces.

A.periodically
B.occasionally
C.chronologically
D.additionally

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3.单项选择题The temperature （） a liquid changes its state from liquid to gas depends upon the liquid itself and upon the pressure （） it is subjected in the containing vessel.

A.at which/to which
B.from which/at which
C.to which/from which
D.in which/on which

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4.单项选择题Special thrust devices are provided on ships to improve their （） at zero ship speed when the rudder is relatively ineffective.

A.brake capabilities
B.reversing capabilities
C.maneuvering capabilities
D.acceleration capabilities

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5.单项选择题The auxiliary steering gear must be capable of being brought speedily into operation and be able to put the rudder over from 15 degrees on one side to 15 degrees on the other side in no more than （） with the ship at its deepest service draught and running ahead at the greater of one half of the maximum service speed or （）.

A.28 seconds；7 knots
B.28 seconds；14 knots
C.60 seconds；7 knots
D.60 seconds；14 knots

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6.单项选择题The main steering gear must be able to steer the ship at maximum ahead service speed and be capable at this speed, and at the ships deepest service draught, of putting the rudder from 35 degrees on one side to 30 degrees on the other side within no （）.

A.more than 28 seconds
B.more than 60 seconds
C.less than 28 seconds
D.less than 60 seconds

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7.单项选择题Which of the following chemicals will be used where protection against caustic cracking is required in boiler treatment?（）

A.Sodium hydroxide
B.Sodium carbonate
C.Sodium nitrate
D.Sodium polyphosphate

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8.单项选择题Coalescence is the breakdown of surface tension between oil droplets in an oil/water mixture, which causes them to join and （） in size.

A.expand
B.extract
C.increase
D.decrease

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9.单项选择题When in operation, it is unavoidable that a small amount of oil （） through leakage, and in order to compensate for these leaks the system is connected to a feed pump.

A.escapes
B.overheats
C.expands
D.accelerates

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10.单项选择题For a L√Opurifier, if the back pressure of the oil outlet is too high, the interface between oil and water in the bowl will （）.

A.be interrupted
B.move downwards
C.move outwards
D.retain original position

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