camshaft seizure
lube oil pump failure
lube oil cooler failure
lube oil pump overflow
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：
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3题：
If the coolant temperature of a closed cooling water system for a diesel enginegradually increases, the trouble usually is( ).
A.a broken shaft on the freshwater pump
B.an excessive accumulation of scale in the heat exchanger
C.an incorrect thermostatic element operating range
D.lube oil in the cooling water
第4题：
contaminated with sludge
contaminated with carbon
diluted with fuel oil
diluted with water
第5题：
a broken shaft on the freshwater pump
an excessive accumulation of scale exchanger
an incorrect thermostatic element operating range
lube oil in the cooling water
第6题：
Prolonged operation of a diesel engine with a closed cooling water system, at lower than normal designed operating temperatures can ______.
A.increase power output
B.decrease lube oil viscosity
C.eliminate fuel knock
D.cause sulfuric acid formation
第7题：
low lube oil temperature
low lube oil pressure
high exhaust temperature
high cooling water pressure
第8题：
What is the most usual reason for the fresh water-sea water heat exchanger fouling in the sea side?
A.lube oil sludge accumulating in it
B.dirt and scale etc , formed on the surfaces
C.deformation of the tubes and the shell or the plates
D.lube oil leakage into sea-water side
第9题：
lube cooler failure
poor heat transfer
mechanical lubricator failure
camshaft seizure
第10题：
excessive crankcase pressure
excessive lube oil temperature
contamination of the lube oil by water
contamination of the cooling water by lube oil