Internal Combustion Engines Compression ratio of I.C. Engines is The ratio of volumes of air in cylinder before compression stroke and after compression stroke Ratio of pressure after compression and before compression Swept volume/cylinder volume Volume displaced by piston per stroke and clearance volume in cylinder The ratio of volumes of air in cylinder before compression stroke and after compression stroke Ratio of pressure after compression and before compression Swept volume/cylinder volume Volume displaced by piston per stroke and clearance volume in cylinder ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a four stroke cycle petrol engine, the inlet valve 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 Opens at 20° before top dead center and closes at 40° after bottom dead center May open or close anywhere 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 Opens at 20° before top dead center and closes at 40° after bottom dead center May open or close anywhere ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The actual volume of fresh charge admitted in 4-stroke petrol engine is Equal to stroke volume Less than stroke volume Equal to stroke volume and clearance volume More than stroke volume Equal to stroke volume Less than stroke volume Equal to stroke volume and clearance volume More than stroke volume ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The increase of efficiency of a compression ignition engine, as the load decreases, is due to Hit and miss governing Higher maximum temperature Quantitative governing Qualitative governing Hit and miss governing Higher maximum temperature Quantitative governing Qualitative governing ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The air standard efficiency of an Otto cycle compared to diesel cycle for the given compression ratio is Same More or less depending on power rating Less More Same More or less depending on power rating Less More 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 Decrease May increase or decrease depending on other factors Increase Be independent Decrease May increase or decrease depending on other factors Increase Be independent ANSWER DOWNLOAD EXAMIANS APP
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