A.a check valve
B.a gate valve
C.a pressure reducing valve
D.a quick closing valve
您可能感興趣的試卷
你可能感興趣的試題
A.at most references
B.at least references
C.maximum standards
D.minimum standards
A.pollution by oil
B.pollution by noxious liquid substances carried in bulk
C.pollution by sewage from ships
D.pollution by garbage from ships
A.pollution
B.economization
C.safety
D.efficiency
A.LL66
B.ITC69
C.ILO No147
D.SOLAS 74
A.clean report
B.serious deficiencies
C.clear grounds
D.detention report
最新試題
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）
The condensers located in various stages of a flash evaporator are cooled by（）
Using a file without a handle may result in （）
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
If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
Which of the following items don’t belong to dock repair works?（）
Under MARPOL Code the ship to which it applies has to carry （）
（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.