the elimination of valve wear
improved atomization
a decrease in cylinder blow-by
an increase in cylinder blow-by
第1题：
employing fuel oil as a cooling medium
preventing hard carbon deposit on nozzle tips
avoiding fuel oil temperature exceeding builder’s specification
ensuring good metallic contact between nozzles and cylinder heads
第2题：
secure the ventilation
find a soda acid extinguisher
shut off the fuel oil supply
secure the generator
第3题：
Oil oxidation as a result of excessively high lube oil temperature, is harmful to a diesel engine Because
A.oil foaming will always occur
B.large quantities of oil are consumed
C.lube oil viscosity is always decreased
D.corrosive by-products are usually formed
第4题：
high fuel oil viscosity
low fuel oil temperature
high lube oil viscosity
energized glow plugs
第5题：
an increased flash point
higher lube oil pressures
an increased viscosity
lower lube oil pressures
第6题：
low water level
high water level
excessively high fuel pressure
low oil temperature
第7题：
in order that
because of
in order to
owing to
第8题：
As its temperature rises, the volume of fuel oil in the tanks will ______.
A.remain the same
B.increase
C.decrease
D.can’t be comfirmed
第9题：
improved cold weather starting
excessive fuel oil consumption
reduced ignition lag
smoother engine operation
第10题：
are interdependent
are not interdependent
have nothing to do with each other
are independent