A.Ammeter and changeover switch
B.Speed governor device
C.Synchroscope
D.Wattmeter
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A.Control panel
B.Paralleling panel
C.Load panel
D.Busbar
A.Overflow valve
B.Reducing valve
C.Balancing valve
D.Reducing valve or balancing valve
A.overflow valve
B.reducing valve
C.relief valve
D.sequence valve
A.overflow valve
B.reducing valve
C.relief valve
D.sequence valve
A.control the fluid flow through it
B.prevent the pressure before it over the specified valve
C.make the pressure after it steady
D.control the direction of oil flow
最新試題
The additional mark （）in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
If separating effect is not good, which measure should be taken （）
The condensers located in various stages of a flash evaporator are cooled by（）
The shipboard oil pollution emergency plan will be invalid after （）
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）
Flame failure in an automatically fired auxiliary boiler can from a/an （）