A.sliding bowl bottom
B.gravity disc
C.separating disc
D.scum valve
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A.turbine
B.screw
C.vaneejector
D.centrifugal
A.leaky pipe
B.opened inlet valve
C.too much water in tank
D.None of the above
A.Steam trap
B.Check valve
C.Separator
D.Strainer
A.lobe type
B.screw type
C.axial piston type
D.volute type
A.increase the fuel oil temperature
B.decrease the fuel oil temperature
C.decrease the fuel oil supply pressure
D.increase the air supply
最新試題
（） is not installed on the main switchboar.
To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）
Under MARPOL Code the ship to which it applies has to carry （）
The condensers located in various stages of a flash evaporator are cooled by（）
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
Cold weather starting of a diesel engine may be made easier by（）
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）
The treatment of the fuel oils involves storage, heating, filtering and（）
The shipboard oil pollution emergency plan will be invalid after （）