A、smoky
B、a little bit dense
C、visible
D、almost invisible
更多“The exhaust gases for a new engine should be （） when the engine operates under full load.”相关的问题
A、increasing the linear velocity of the exhaust gases B、changing directions of exhaust gas flow C、decreasing the temperature of the exhaust gases D、accelerating the exhaust gas through a reduced size orifice
A、temperature of the exhaust gases B、energy supplied to the turbocharger C、air pressure to the intake manifold D、purge of exhausted gases from the cylinders
A、provide exhaust back pressure B、prevent exhaust smoke emissions C、power a reciprocating supercharger D、muffle exhaust gas noise
A、improve fuel flow volume B、cool the exhaust valves C、reduce the intake air charge density D、increase the temperature of exhaust gases
A、A.exhaust manifold B、B.valve bridge C、C.pressure of the fresh air charge D、D.valve adjusting gear
A、discharge exhaust gases and smoke B、furnish energy to the turbocharger C、reduce engine room noise D、all of the above
A、A.reduce heat radiation to the engine room B、B.aid in preventing turbocharger overheating C、C.condense and drain moisture from exhaust gases D、D.dampen exhaust gas pulsations in the manifold
A、injecting fuel oil into a cylinder B、removing exhaust gases from the cylinder C、forcing air into the cylinders under pressure after the exhaust valve has dosed D、a combination of all the above
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