Internal Combustion Engines The ratio of the indicated thermal efficiency to the air standard efficiency is known as Volumetric efficiency Relative efficiency Mechanical efficiency Overall efficiency Volumetric efficiency Relative efficiency Mechanical efficiency Overall efficiency ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Which one of the following event would reduce volumetric efficiency of a vertical compression ignition engine? Inlet valve opening before top dead center Exhaust valve closing after top dead center Inlet valve closing after bottom dead center Inlet valve closing before bottom dead center Inlet valve opening before top dead center Exhaust valve closing after top dead center Inlet valve closing after bottom dead center Inlet valve closing before bottom dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The actual volume of fresh charge admitted in 4-stroke petrol engine is More than stroke volume Equal to stroke volume Equal to stroke volume and clearance volume Less than stroke volume More than stroke volume Equal to stroke volume Equal to stroke volume and clearance volume Less than stroke volume ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The pressure and temperature at the end of compression stroke in a petrol engine are of the order of 20-30 kg/cm² and 450-500°C 4-6 kg/cm² and 200-250°C 12-20 kg/cm² and 350-450°C 6-12 kg/cm² and 250-350°C 20-30 kg/cm² and 450-500°C 4-6 kg/cm² and 200-250°C 12-20 kg/cm² and 350-450°C 6-12 kg/cm² and 250-350°C ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The thermal efficiency of diesel engines is about 0.7 0.5 0.3 0.15 0.7 0.5 0.3 0.15 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The maximum propulsive efficiency of a turbojet engine is at a speed of 1000 km/h 2000 km/h 3000 km/h 2400 km/h 1000 km/h 2000 km/h 3000 km/h 2400 km/h ANSWER DOWNLOAD EXAMIANS APP
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