good lubrication
low thermal stress
good mechanical properties
acid corrosion
第1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2题：
Maintains a constant head on the system
Reduces the likelihood of air or steam pockets formation
Provides a low pressure point for the addition of makeup cooling water
All of the above
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：
Cooling water is alkalescence
cooling water is acidity
cooling water has salinity
cooling water has impurity
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：
Impeller
Compressor
After-cooler
Exhaust differ
第7题：
continuously
regularly
constantly
period
第8题：
Constant cooling the various components of diesel engine has a number of functions except for ______.
A.good lubrication
B.low thermal stress
C.good mechanical properties
D.acid corrosion
第9题：
Ⅰ+Ⅱ
Ⅱ+Ⅲ
Ⅲ+Ⅳ
Ⅰ+Ⅳ
第10题：
Internally finned liner
Externally finned liner
Wet liner
Integral water-jacket liner