A.the master and the chief engineer are unable to communicate effectively
B.serious corrosion on the hull
C.damaged sanitary pump
D.one page missing in the oil record book
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A.one year
B.two years
C.four years
D.five years
A.Ring type
B.Fork type
C.Spade type
D.Push on pull off type
A.anaerobic bacteria
B.aerobic bacteria
C.air bubbles
D.disinfection chemicals
A.the temperature and flow quantity of the exhaust gas from M.E
B.the quantity of steam demanded
C.the rotary speed and the cooling water temperature of main engine
D.efficiency of M.E turbocharger
A.purge lube oil from the liquid refrigerant
B.recover water purged from the system
C.separate foul gases from the receiver
D.purge non-condensable gases without losing refrigerant
最新試題
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）
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
Diesel engine air start system check valves are opened by （）
By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a（）
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）
Under MARPOL Code the ship to which it applies has to carry （）
If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）
If separating effect is not good, which measure should be taken （）
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.