单项选择题
A.high firing pressure B.overload of that particular cylinder C.smoky exhaust D.cooling water temperature rise
The rate of pressure rise during the period following f...
单项选择题The rate of pressure rise during the period following fuel ignition in a diesel will result in （）
A.valve overlap B.volumetric efficiency C.turbulence of the air change D.fuel efficiency
Higher than normal temperature air passing through the ...
单项选择题Higher than normal temperature air passing through the intake of a diesel engine will result in（）
A.greater overall efficiency B.greater fuel economy C.lower horsepower D.lower compression ratio
Air scavenging of a diesel engine cylinder（）A.blows out...
单项选择题Air scavenging of a diesel engine cylinder（）
A.blows out the exhaust gases B.supplies oxygen for combustion C.cools the valves and cylinder walls D.all of the above
