Internal Combustion Engines The mechanical efficiency (ηm) of the engine is given by None of these ηm = B.P/I.P ηm = (B.P × I.P)/100 ηm = I.P/B.P None of these ηm = B.P/I.P ηm = (B.P × I.P)/100 ηm = I.P/B.P ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a typical medium speed, 4-stroke cycle diesel engine Fuel injection starts at 10° before top dead center and ends at 20° after top dead center May start and end anywhere Fuel injection starts at just before top dead center and ends just after top dead center Fuel injection starts at top dead center and ends at 20° after top dead center Fuel injection starts at 10° before top dead center and ends at 20° after top dead center May start and end anywhere Fuel injection starts at just before top dead center and ends just after top dead center Fuel injection starts at top dead center and ends at 20° after top dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Compression ratio of I.C. Engines is Ratio of pressure after compression and before compression Volume displaced by piston per stroke and clearance volume in cylinder Swept volume/cylinder volume The ratio of volumes of air in cylinder before compression stroke and after compression stroke Ratio of pressure after compression and before compression Volume displaced by piston per stroke and clearance volume in cylinder Swept volume/cylinder volume The ratio of volumes of air in cylinder before compression stroke and after compression stroke ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The knocking in spark ignition engines can be reduced by None of these Retarding the spark Increasing the engine speed Both (A) and (B) None of these Retarding the spark Increasing the engine speed Both (A) and (B) 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 The effective inhibitor of pre-ignition is Lead Water Alcohol None of these Lead Water Alcohol None of these ANSWER DOWNLOAD EXAMIANS APP
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