单项选择题

When replacing a part with a spare one, we should fill in tile spare parts consume table in time and make a mark in brief for （）

A.the reason of replacing
B.the course of replacing
C.crews who do this work
D.where and when the replacing being done

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单项选择题

Why the cooling water of the diesel engine should be treated? Because the（）

A.Cooling water is alkalescence
B.cooling water is acidity
C.cooling water has salinity
D.cooling water has impurity

单项选择题

The cooling water of the diesel engine should be treated, because it has（）

A.alkale scence
B.acidity
C.salinity
D.impurity

单项选择题

When received the order "finished with engine" which of the following operations is wrong?（）

A.stop the LO pump, SW pump, FW pump
B.stop the priming FO transfer pump
C.engage the turning gear
D.open the scavenge air belts drain valve and cover the turbocharger silencer with the dustproof cover