A.sliding bowl bottom
B.gravity disc
C.bowl
D.liquid level detector
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A.sliding bowl bottom
B.gravity disc
C.separating disc
D.scum valve
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
最新試題
The main purpose of port State control is not to（）
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）
The shipboard oil pollution emergency plan will be invalid after （）
（） is not installed on the main switchboar.
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）
Under MARPOL Code the ship to which it applies has to carry （）