Internal Combustion Engines The minimum cranking speed in case of petrol engine is about One fourth of operating speed 60 - 80 rpm Half the operating speed 250 - 300 rpm One fourth of operating speed 60 - 80 rpm Half the operating speed 250 - 300 rpm ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a four stroke cycle diesel engine, the inlet valve May open and close anywhere Opens at 20° before top dead center and closes at 40° after bottom dead center Opens at 20° after top dead center and closes at 20° before bottom dead center Opens at top dead center and closes at 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 20° after top dead center and closes at 20° before bottom dead center Opens at top dead center and closes at bottom dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The thermal efficiency of diesel engines on weak mixtures is Lower Higher Dependent on other factors Unaffected Lower Higher Dependent on other factors Unaffected ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The scavenging efficiency of a four stroke cycle diesel engine is Below 50% Between 95 and 100% Between 85 and 95% Between 50 and 85% Below 50% Between 95 and 100% Between 85 and 95% Between 50 and 85% ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The ratio of the indicated thermal efficiency to the air standard efficiency is known as Overall efficiency Relative efficiency Mechanical efficiency Volumetric efficiency Overall efficiency Relative efficiency Mechanical efficiency Volumetric efficiency ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The ignition of the charge by some hot surface within the engine before the passage of spark is called Pre-ignition Detonation Ignition delay Auto-ignition Pre-ignition Detonation Ignition delay Auto-ignition ANSWER DOWNLOAD EXAMIANS APP
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