Internal Combustion Engines Which one of the following event would reduce volumetric efficiency of a vertical compression ignition engine? Inlet valve closing before bottom dead center Exhaust valve closing after top dead center Inlet valve opening before top dead center Inlet valve closing after bottom dead center Inlet valve closing before bottom dead center Exhaust valve closing after top dead center Inlet valve opening before top dead center Inlet valve closing after bottom dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The mechanical efficiency (ηm) of the engine is given by ηm = B.P/I.P ηm = (B.P × I.P)/100 ηm = I.P/B.P None of these ηm = B.P/I.P ηm = (B.P × I.P)/100 ηm = I.P/B.P None of these ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The maximum propulsive efficiency of a turbojet engine is at a speed of 3000 km/h 2000 km/h 2400 km/h 1000 km/h 3000 km/h 2000 km/h 2400 km/h 1000 km/h ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A mixture containing 65% of iso-octane and 35% of normal heptane will have Octane number 35 Cetane number 35 Octane number 65 Cetane number 65 Octane number 35 Cetane number 35 Octane number 65 Cetane number 65 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a petrol engine, the mixture has the lowest pressure at the End of compression stroke None of these Beginning of suction stroke End of suction stroke End of compression stroke None of these Beginning of suction stroke End of suction stroke ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a four stroke cycle diesel engine, the inlet valve Opens at 20° after top dead center and closes at 20° before bottom dead center May open and close anywhere Opens at 20° before top dead center and closes at 40° after bottom dead center Opens at top dead center and closes at bottom dead center Opens at 20° after top dead center and closes at 20° before bottom dead center May open and close anywhere Opens at 20° before top dead center and closes at 40° after bottom dead center Opens at top dead center and closes at bottom dead center ANSWER DOWNLOAD EXAMIANS APP
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