A.the sinking of tail shaft
B.the clearance of stern bearing
C.the total flexure of shaft
D.main engine crankshaft deflection
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A.Voyage repairs
B.Routine docking
C.Damage repairs
D.Conversion
A.engine logbook
B.delivery docket
C.store booklet
D.maintenance book
The purpose of treating the cooling water of the diesel engine is to（）
Ⅰ. resist the scale formation in the cooling chamber
Ⅱ.lubricate the engine part
Ⅲ.increase thermal capacity
Ⅳ.resist corrosion
A.Ⅰ+Ⅱ
B.Ⅱ+Ⅲ
C.Ⅲ+Ⅳ
D.Ⅰ+Ⅳ
A.disengaging the clutch firstly, then stopping the main engine
B.stopping the main engine firstly, then disengaging the clutch
C.stopping the cooling water pump firstly, then stopping the main engine
D.stopping the main engine and disengaging the clutch at the same time
A.the master
B.the chief engineer
C.the bridge
D.the company superintendent
最新試題
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）
Which of the following items don’t belong to dock repair works?（）
（） is not installed on the main switchboar.
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
The cetane rating of diesel fuel is an indication of the （）
The condensers located in various stages of a flash evaporator are cooled by（）
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
The shipboard oil pollution emergency plan will be invalid after （）
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.