A.it is dirty
B.it is leaky
C.it has been renewed
D.all the above
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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
A.piston crown
B.piston ring groove
C.piston skirt
D.piston ring area
A.one propulsion
B.two propulsions
C.two revolutions
D.one revolution
A.cooling water
B.vapor from the boiler
C.starting air
D.hot gases
最新試題
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
The highest pressure in a diesel engine cylinder normally occurs （）.
For a given size engine, the two-stroke/cycle diesel engine will deliver more power than a four-stroke/cycle diesel engine because （）.
A thrust bearing is used with a propulsion diesel engine to （）.
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?（）
Combustion knock occurring in a diesel engine can be caused by （）.
The ability of the governor to prevent fluctuations in engine speed is termed （）.
The most important factor in engine performance is the actual power output at the end of the crankshaft available for doing workThis is known as （）.
The function of diesel engine piston compression rings is to （）.
Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.