Internal Combustion Engines In a four stroke cycle petrol engine, the compression May start and end anywhere Starts at 40° after bottom dead centre and ends at 30° before top dead centre Starts at bottom dead centre and ends at top dead centre Starts at 40° before bottom dead centre and ends at 30° after bottom dead centre May start and end anywhere Starts at 40° after bottom dead centre and ends at 30° before top dead centre Starts at bottom dead centre and ends at top dead centre Starts at 40° before bottom dead centre and ends at 30° after bottom dead centre ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Fuel consumption of diesel engines is not guaranteed at one quarter load because at such low loads The friction is unpredictable The small difference in cooling water temperature or in internal friction has a disproportionate effect The engine is rarely operated The friction is high The friction is unpredictable The small difference in cooling water temperature or in internal friction has a disproportionate effect The engine is rarely operated The friction is high ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The theoretically correct mixture of air and petrol is 20 : 1 15 : 1 10 : 1 25 : 1 20 : 1 15 : 1 10 : 1 25 : 1 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The mechanical efficiency (ηm) of the engine is given by ηm = B.P/I.P None of these ηm = I.P/B.P ηm = (B.P × I.P)/100 ηm = B.P/I.P None of these ηm = I.P/B.P ηm = (B.P × I.P)/100 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The octane number of petrol, generally available, is 40 to 60 60 to 80 80 to 100 20 to 40 40 to 60 60 to 80 80 to 100 20 to 40 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The working cycle in case of four stroke engine is completed in following number of revolutions of crankshaft 43832 2 4 1 43832 2 4 1 ANSWER DOWNLOAD EXAMIANS APP
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