Internal Combustion Engines The theoretically correct mixture of air and petrol is 20 : 1 25 : 1 10 : 1 15 : 1 20 : 1 25 : 1 10 : 1 15 : 1 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a naturally aspirated diesel engine, the air is supplied by A vacuum chamber An injection tube A supercharger A centrifugal blower A vacuum chamber An injection tube A supercharger A centrifugal blower ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A gas engine has a swept volume of 300 cm3 and clearance volume of 25 cm3. Its volumetric efficiency is 0.88 and mechanical efficiency is 0.90. The volume of the mixture taken in per stroke is 248 cm3 252 cm3 286 cm3 264 cm3 248 cm3 252 cm3 286 cm3 264 cm3 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The actual volume of fresh charge admitted in 4-stroke petrol engine is Less than stroke volume Equal to stroke volume and clearance volume Equal to stroke volume More than stroke volume Less than stroke volume Equal to stroke volume and clearance volume Equal to stroke volume More than stroke volume ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The exhaust valve in a four stroke cycle petrol engine Opens at bottom dead center and closes at top dead center Opens at 50° after bottom dead center and closes at 15° before top dead center May open and close anywhere Opens at 50° before bottom dead center and closes at 15° after top dead center Opens at bottom dead center and closes at top dead center Opens at 50° after bottom dead center and closes at 15° before top dead center May open and close anywhere Opens at 50° before bottom dead center and closes at 15° after top dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines If the temperature of intake air in internal combustion engine increases, then its efficiency will None of the listed here Increase Remain same Decrease None of the listed here Increase Remain same Decrease ANSWER DOWNLOAD EXAMIANS APP
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