Internal Combustion Engines In a typical medium speed 4-stroke cycle diesel engine the inlet valve May open or close anywhere Opens at 20° before top dead center and closes at 35° after the bottom dead center Opens at top dead center and closes at bottom dead center Opens at 10° after top dead center and closes 20° before the bottom dead center May open or close anywhere Opens at 20° before top dead center and closes at 35° after the bottom dead center Opens at top dead center and closes at bottom dead center Opens at 10° after top dead center and closes 20° before the bottom dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines An hmh flame speed is obtained in diesel engine when air fuel ratio is About 10% of rich mixture About 35% of rich mixture Uniform throughout the mixture Chemically correct mixture About 10% of rich mixture About 35% of rich mixture Uniform throughout the mixture Chemically correct mixture ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The temperature of interior surface of cylinder wall in normal operation is not allowed to exceed 80°C 180°C 240°C 120°C 80°C 180°C 240°C 120°C ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The mean effective pressure obtained from engine indicator indicates the Average pressure Instantaneous pressure at any instant Maximum pressure developed Minimum pressure Average pressure Instantaneous pressure at any instant Maximum pressure developed Minimum pressure ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The thermal efficiency of diesel engines on weak mixtures is Lower Higher Unaffected Dependent on other factors Lower Higher Unaffected Dependent on other factors ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The ratio of the volume of charge admitted at N.T.P. to the swept volume of the piston is called Volumetric efficiency Relative efficiency Overall efficiency Mechanical efficiency Volumetric efficiency Relative efficiency Overall efficiency Mechanical efficiency ANSWER DOWNLOAD EXAMIANS APP
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