A.at TDC
B.before TDC
C.after TDC
D.during air starting
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A.Spark plug
B.Heat of compression
C.Carburetor
D.Glow ping
A.seal the space between the piston and the liner
B.reduce the amount of lube oil burned in the combustion chamber
C.transmit heat from the piston to the cylinder liner
D.damp out fluctuations of the piston side thrust
A.when the engine RPM is pulled down by overload
B.at rated engine RPM
C.at 95 % of rated engine RPM
D.at 95 % of a properly adjusted governor RPM with the engine under full load
A.temperature
B.pressure
C.engine speed
D.all of the above
A.two crankshaft revolutions in a two-stroke/cycle engine
B.two power strokes in a two-stroke/cycle engine
C.one power stroke in a two-stroke/cycle engine
D.two piston strokes in a two-stroke/cycle engine
最新試題
An automated diesel engine should normally shut down due to （）
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.
The ability of the governor to prevent fluctuations in engine speed is termed （）.
In a simple mechanical governor, the （）.
The function of diesel engine piston compression rings is to （）.
A thrust bearing is used with a propulsion diesel engine to （）.
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）
The highest pressure in a diesel engine cylinder normally occurs （）.
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.