Internal Combustion Engines The specific fuel consumption per B.P. hour for a petrol engine is about 0.3 kg 0.35 kg 0.2 kg 0.25 kg 0.3 kg 0.35 kg 0.2 kg 0.25 kg ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The theoretically correct mixture of air and petrol is 20 : 1 15 : 1 25 : 1 10 : 1 20 : 1 15 : 1 25 : 1 10 : 1 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The pressure and temperature at the end of compression stroke in a petrol engine are of the order of 4-6 kg/cm² and 200-250°C 20-30 kg/cm² and 450-500°C 6-12 kg/cm² and 250-350°C 12-20 kg/cm² and 350-450°C 4-6 kg/cm² and 200-250°C 20-30 kg/cm² and 450-500°C 6-12 kg/cm² and 250-350°C 12-20 kg/cm² and 350-450°C ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The thermal efficiency of a standard Otto cycle for a compression ratio of 5.5 will be 1 0.25 0.7 0.5 1 0.25 0.7 0.5 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Detonation is harmful due to Increase in the rate of heat transfer, there is a reduction in the power output and efficiency of the engine High intensity of knock causes crankshaft vibration and the engine runs rough Excessive turbulence which removes most of the insulating gas boundary layer from the cylinder walls None of these Increase in the rate of heat transfer, there is a reduction in the power output and efficiency of the engine High intensity of knock causes crankshaft vibration and the engine runs rough Excessive turbulence which removes most of the insulating gas boundary layer from the cylinder walls None of these ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The pressure at the end of compression, in petrol engines, is approximately 25 bar 10 bar 20 bar 35 bar 25 bar 10 bar 20 bar 35 bar ANSWER DOWNLOAD EXAMIANS APP
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