A.main steam stop valve
B.auxiliary steam stop valve
C.feed check or control valve
D.blow down valve
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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
A.the thrust pads are while metal faced on both sides
B.the thrust pads are while metal faced only on the forward side
C.the thrust pads are while metal faced only on the after side
D.intermediate shaft usually supported by a plummer block
A.high speeds
B.medium speed
C.low speeds
D.the same speed with the engine
A.check oil level in bearing sump
B.check them for leakagec through end seals
C.pump bilges in time
D.check temperature
最新試題
The shipboard oil pollution emergency plan will be invalid after （）
Using a file without a handle may result in （）
The cetane rating of diesel fuel is an indication of the （）
The condensers located in various stages of a flash evaporator are cooled by（）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
Cold weather starting of a diesel engine may be made easier by（）
Diesel engine air start system check valves are opened by （）
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）
Flame failure in an automatically fired auxiliary boiler can from a/an （）
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