A.60 to75
B.80 to 95
C.100 to 115
D.120 to 135
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A.heat conduction into the injected fuel oil
B.heat conduction into the water jacket wall
C.water circulation through passages in the holder
D.fuel oil circulation through passages in the holder
A.slightly acidic condition
B.slightly alkaline condition
C.overtreatment of water
D.neutral condition of water
A.Combustion gases flow through the tubes
B.Flames impinge on the tubes
C.Combustion occurs in the tubes
D.Water flows through the tubes
A.slight acidity
B.slight alkalinity
C.excessive alkalinity
D.excessive acidity
A.cold corrosion of the nozzles
B.fuel viscosity for better atomization
C.carbon accumulation on the nozzles
D.fuel detonation in the cylinders
最新試題
What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）
The ability of the governor to prevent fluctuations in engine speed is termed （）.
Maximum horsepower of a diesel engine is attained （）.
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.
Lube oil cannot be efficiently filtered if its （）.
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 （）.
In a simple mechanical governor, the （）.
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
A thrust bearing is used with a propulsion diesel engine to （）.
The minimum speed an engine must attain before ignition can occur depends upon （）.