A.not be changed
B.be changed
C.should not be changed
D.should be changed
您可能感興趣的試卷
你可能感興趣的試題
A.water discharges from the indicator cocks
B.no water is leaking into crankcase
C.no water in the scavenge belt
D.the rpm is lower than the speed of Dead Slow Ahead
A.viscosity
B.pressure
C.resistance
D.setting point
A.it is dirty
B.it is leaky
C.it has been renewed
D.all the above
A.specific volume
B.density
C.viscosity
D.calorific value
A.by an fuel valve
B.through an inlet valve
C.with an exhaust valve
D.from an outlet valve
最新試題
The minimum speed an engine must attain before ignition can occur depends upon （）.
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
An automated diesel engine should normally shut down due to （）
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.
Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.
The highest pressure in a diesel engine cylinder normally occurs （）.
The function of diesel engine piston compression rings is to （）.
Proper filtering and straining of fuel oil is important because the （）.
To determine if the lube oil filter elements need changing, （）.