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