alkale scence
acidity
salinity
impurity
第1题：
stop the engine immediately to prevent damage
increase lube oil pressure
slow the engine allowing it to gradually cool
decrease the cooling water it temperature to the water jacket
第2题：
60 to75
80 to 95
100 to 115
120 to 135
第3题：
The cooling water of the diesel engine should be treated with chemical, because it contains .
A.alkali
B.acidity
C.salinity
D.impurity
第4题：
a dirty lube oil strainer
internal water leaks
an oil suction line restriction
excessive wears of the cooling water pump
第5题：
reduce lube oil temperature
raise exhaust temperature reduce
excessive heating of engine room
reduce load on cooling water pump
第6题：
notify the duty officer, reduce the engine speed, take some measures to remove failures
notify the duty officer and stop the engine immediately, find the cause and remove failures
notify the C/E
notify the captain
第7题：
fresh water expansion tank
sea water expansion tank
thermostatic expansion valve
jacket water cooler accumulator
第8题：
High diesel engine cooling water temperatures can be caused by ______.
A.air in the cooling system
B.an overhauled water pump
C.correct amount of coolant
D.no air in the cooling system
第9题：
Ⅰ+Ⅱ
Ⅱ+Ⅲ
Ⅲ+Ⅳ
Ⅰ+Ⅳ
第10题：
Cooling water is alkalescence
cooling water is acidity
cooling water has salinity
cooling water has impurity