单项选择题
In describing engine operation, what does the term “cycle” mean?（）
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
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相关考题
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单项选择题
An advantage of aluminum pistons, when compared to cast iron pistons is （）.
A.greater high temperature strength
B.better heat conductivity
C.greater weight per cubic inch
D.increased resistance to wear -
单项选择题
Which of the combustion parameters listed is used in a diesel engine, but NOT related to the injection system?（）
A.Atomization
B.Metering
C.Effective stroke
D.Penetration -
单项选择题
Successful combustion inside the cylinders of a diesel engine is dependent upon （）.
A.fine atomization
B.high temperature
C.good mixing of fuel and air
D.all of the above
