A.improve power factor
B.reduce voltage oscillation
C.increase the insulation of circuits
D.eliminate regenerated magnetic fields
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A.for the release of air from the cooling water
B.providing expansion room for heated cooling water
C.a place for implementing water and water treatment agent
D.all of the above
A.1/2
B.1
C.2
D.3
A.non-synchronous electric motor
B.synchronous electric motor
C.fully enclosed electric motor
D.watertight electric motor
A.an increase in the exhaust temperature of the affected cylinder
B.the turbocharger may surge
C.the explosion pressure in all cylinders will rise violently
D.smoke from the turbocharger air inlet filter will be seen
A.refreshing the air
B.making person upset
C.adjusting the air humidity
D.adjusting the air temperature
最新試題
To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）
Which of the following items don’t belong to dock repair works?（）
To proceed to the assistance of a ship in distress is（）
Cold weather starting of a diesel engine may be made easier by（）
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
When does auxiliary burner of incinerator put into operation? （）Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
The shipboard oil pollution emergency plan will be invalid after （）
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）