Internal Combustion Engines The mechanical efficiency (ηm) of the engine is given by ηm = I.P/B.P 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 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a naturally aspirated diesel engine, the air is supplied by A centrifugal blower An injection tube A supercharger A vacuum chamber A centrifugal blower An injection tube A supercharger A vacuum chamber ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The fuel valve in a four stroke cycle diesel engine May open and close anywhere Opens at 15° before top dead center and closes at 20° after top dead center Opens at 15° 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 15° before top dead center and closes at 20° after top dead center Opens at 15° 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 increase of cooling water temperature in petrol engine will _________ the knocking tendency. Not effect None of these Decrease Increase Not effect None of these Decrease Increase ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The thermal efficiency of petrol and gas engines is about 0.7 0.5 0.3 0.15 0.7 0.5 0.3 0.15 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The fuels in order of decreasing knock tendency for spark ignition engines are Paraffin, aromatic, napthene Paraffin, napthene, aromatic Napthene, paraffin, aromatic Napthene, aromatics, paraffin Paraffin, aromatic, napthene Paraffin, napthene, aromatic Napthene, paraffin, aromatic Napthene, aromatics, paraffin ANSWER DOWNLOAD EXAMIANS APP
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