单项选择题The following preparations are essential for any () of marine diesel engine before it may be started.

A.doing
B.make
C.turn
D.operating


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2.单项选择题It was ()midnight that we removed the trouble and went back to our cabin.

A.until
B.not until
C.not before
D.not after

3.单项选择题Which of the statements listed concerning heat transfer is correct?()

A.Heat is always transferred at a constant rate
B.Heat transfer rate increases as temperature difference increases
C.The rate of heat transfer is not affected by temperature difference
D.The high temperature region is known as a heat sink

5.单项选择题The ()is used to measure power.

A.ammeter
B.voltmeter
C.wattmeter
D.frequency meter

6.单项选择题If you burned your arm on a bare steam line, the most effective immediate treatment would be to()

A.wrap the arm in a tight bandage
B.soak the arm in hot salt water
C.cover the burn with petroleum jelly
D.put the burn in cold water

8.单项选择题The company which is defined in the ISM Code means()

A.the owner of the ship
B.the manager who assumes the responsibility for operation of the ship
C.the bareboat charterer
D.All of the above

9.单项选择题Latent heat changes the ()of water.

A.physical state
B.temperature
C.atmospheric pressure
D.sensible pressure

10.单项选择题I find ().

A.it is difficult for them to finish the job in time
B.difficult for them to finish the job in time
C.they have much difficulty to finish the job in time
D.that difficult for them to finish the job in time