A.live
B.dead
C.excited
D.on line
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A.Feed back
B.Negative feed back
C.Close loop
D.Open loop
A.The shaft
B.The mechanical
C.The electric
D.The indicated
A.compressed air
B.hydraulic oil
C.electricity
D.All of the above
A.Alarm
B.Monitoring
C.Auto start-up
D.None of the above
A.make-up
B.desired value
C.deviation
D.set value
最新試題
The treatment of the fuel oils involves storage, heating, filtering and（）
If separating effect is not good, which measure should be taken （）
Using a file without a handle may result in （）
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）
To proceed to the assistance of a ship in distress is（）
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.