A.Atomization
B.Metering
C.Effective stroke
D.Penetration
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A.fine atomization
B.high temperature
C.good mixing of fuel and air
D.all of the above
A.Rapid increase in temperature with constant pressure
B.Rapid increase in pressure with constant temperature
C.Rapid increase in pressure and temperature
D.Rapid increase in volume and decrease in pressure
A.turbocharger stalls
B.exhaust pressure increases
C.air charge density decreases
D.scavenge effect increases
A.facilitate the installation of piston rings
B.allow for the expansion of the piston during operation
C.prevent crankcase vapors from entering the combustion chamber
D.reduce wearing of the upper cylinder liner
A.direct action of cam shaft
B.compressed air pressure
C.hydraulic “push rods”
D.direct action of the main piston moving down
最新試題
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
An automated diesel engine should normally shut down due to （）
A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
The function of diesel engine piston compression rings is to （）.
The ability of the governor to prevent fluctuations in engine speed is termed （）.
In a simple mechanical governor, the （）.
The highest pressure in a diesel engine cylinder normally occurs （）.
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
Lube oil cannot be efficiently filtered if its （）.