A.main stem stop valve
B.auxiliary steam stop valve
C.feed check or control valve
D.blow down valve
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A.main stem stop valve
B.auxiliary steam stop valve
C.feed check or control valve
D.blow down valve
A.main stem stop valve
B.auxiliary steam stop valve
C.feed check or control valve
D.blow down valve
A.main steam stop valve
B.auxiliary steam stop valve
C.feed check or control valve
D.blow down valve
A.fuel valves of main engine
B.injector pump of main engine
C.safety valves of marine boiler
D.safety valves of a reciprocating pump
A.a mechanical seal
B.keyway and key
C.a nut
D.shrinkage
最新試題
Which of the following items don’t belong to dock repair works?（）
The main purpose of port State control is not to（）
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）
（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）
If separating effect is not good, which measure should be taken （）
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
The condensers located in various stages of a flash evaporator are cooled by（）