Which of the following factors tends to increase scale formation on the saltwater side of
A. Baffle plates that have been bent during prior removal
B. Leaks m the cooler tube nest
C. Operating the engine while maintaining a high sea water outlet temperature
D. A punctured sea water strainer supplying cooling water to the heat exchanger
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why do you need to take the lube oil sample for analysis ？ in the analyzing , what can you possibly find ？and if you find these substances ,what are the possible problems the engines may have ？why ？
If anything abnormal be found on the load change of main engine when the ship is entering
A. stop main engine immediately
B. ask the captain and the chief engineer's permission for stopping the engine
C. inquire the bridge for the situation initiatively
D. stop engine and inform bridge
_______can be a direct cause of faulty operation of diesel engine fuel injection nozzles.
A. Excessive fuel nozzle holder cooling
B. Sediment in the fuel supply
C. Distortion of the fuel spray pattern
D. Improper atomization of the fuel
《中国民航公务乘机通行证》于()启用。
A. 1976年7月6日
B. 1998年3月1日
C. 1993年8月1日
D. 1976年3月1日
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