Internal Combustion Engines The ratio of the brake power to the indicated power is called Indicated thermal efficiency Mechanical efficiency Volumetric efficiency Overall efficiency Indicated thermal efficiency Mechanical efficiency Volumetric efficiency Overall efficiency ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The thermal efficiency of a diesel cycle having fixed compression ratio, with increase in cut-off ratio will Be independent Increase May increase or decrease depending on other factors Decrease Be independent Increase May increase or decrease depending on other factors Decrease ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A diesel engine as compared to petrol engine (both running and rated load) is Other factors will decide it Less efficient More efficient Equally efficient Other factors will decide it Less efficient More efficient Equally efficient ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a typical medium speed 4-stroke cycle diesel engines Exhaust valve opens at 35° before bottom dead center and closes at 20° after top dead center Exhaust valve opens at bottom dead center and closes at top dead center Exhaust valve opens just after bottom dead center and closes just before top dead center May open and close anywhere Exhaust valve opens at 35° before bottom dead center and closes at 20° after top dead center Exhaust valve opens at bottom dead center and closes at top dead center Exhaust valve opens just after bottom dead center and closes just before top dead center May open and close anywhere ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The object of providing masked inlet valve in the air passage of compression ignition engines is to Induce secondary turbulence Enhance flow rate Control air flow Induce primary swirl Induce secondary turbulence Enhance flow rate Control air flow Induce primary swirl 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 12-20 kg/cm² and 350-450°C 4-6 kg/cm² and 200-250°C 6-12 kg/cm² and 250-350°C 20-30 kg/cm² and 450-500°C 12-20 kg/cm² and 350-450°C 4-6 kg/cm² and 200-250°C 6-12 kg/cm² and 250-350°C 20-30 kg/cm² and 450-500°C ANSWER DOWNLOAD EXAMIANS APP
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