A.Combustion does not begin until the piston starts down on the power stroke
B.Maximum combustion pressure is reached before TDC
C.Turbulence in the cylinder causes a delay in ignition
D.Maximum cylinder firing pressure is not developed until the piston passes TDC
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A.performance
B.horsepower output
C.fuel consumption
D.scavenge effect
A.low compression pressure
B.increased piston wear
C.increased cylinder lube oil consumption
D.poor contact between compression rings and liner
A.The sequence of events that produce a power pulse
B.One rotation of the engine crankshaft
C.One stroke of a piston
D.All of the above
A.greater high temperature strength
B.better heat conductivity
C.greater weight per cubic inch
D.increased resistance to wear
A.Atomization
B.Metering
C.Effective stroke
D.Penetration
最新試題
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
The highest pressure in a diesel engine cylinder normally occurs （）.
Diesel engine control can be obtained by the bridge （）.
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 （）.
How many power strokes per crankshaft revolution are there in an eight cylinder, two stroke/cycle diesel engine?（）
What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）
In using reduction gears to obtain efficient propeller speeds, （）.
The ability of the governor to prevent fluctuations in engine speed is termed （）.
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.
Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）