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单选题
Exhaust gases are generally removed from the cylinders of a two-stroke/cycle diesel engine by（）
A
natural aspiration
B
masked intake valves
C
air cells
D
scavenging air
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removing exhaust gases from the cylinderC
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单选题Scavenging is （） of exhaust gases by blowing in fresh air.A
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单选题In a two-stroke/cycle diesel engine, the exhaust gases are expelled from the cylinder by the（）A
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单选题In an engine with air inlet valve and exhaust valve on its cylinder heads the fresh air will enter into the cylinder （） and the gases exhaust （）, there being an adequate overlap between the inlet opening and the exhaust closing.A
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单选题When one cylinder has a lower compression pressure and higher exhaust gas temperature than any of the other engine cylinders, which of the conditions listed will indicated?（）A
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