A.diesel oil instead of fuel oil
B.fuel oil instead of diesel oil
C.diesel oil instead fuel oil
D.fuel oil instead diesel oil
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A.the “ nip ”is zero
B.the “ nap ” is zero
C.the “ gap ”is correct
D.the “ clearance ” is correct
A.a closed loop control system
B.an open loop control system
C.a boiler control system
D.a steering gear
A.sliding bowl bottom
B.gravity disc
C.bowl
D.liquid level detector
A.sliding bowl bottom
B.gravity disc
C.separating disc
D.scum valve
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最新試題
Cold weather starting of a diesel engine may be made easier by（）
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）
Flame failure in an automatically fired auxiliary boiler can from a/an （）
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
The shipboard oil pollution emergency plan will be invalid after （）
If separating effect is not good, which measure should be taken （）
To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）
Using a file without a handle may result in （）