A.result from
B.result in
C.give out
D.given from
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A.make
B.cause
C.result
D.produce
A.boiler
B.heater
C.engine
D.cooler
A.to retain
B.to remain
C.to maintenance
D.to have
A.good lubrication
B.low thermal stress
C.good mechanical properties
D.acid corrosion
A.for starting diesel engines
B.in pneumatic control system
C.in pneumatic tools
D.All the above are true
最新試題
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
A diesel engine piston ring face is in direct contact with the （）.
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）
Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.
The function of diesel engine piston compression rings is to （）.
Proper filtering and straining of fuel oil is important because the （）.
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.
When would the available energy of the exhaust gases of a two-stroke/cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?（）