Internal Combustion Engines The mechanical efficiency (ηm) of the engine is given by ηm = B.P/I.P ηm = (B.P × I.P)/100 None of these ηm = I.P/B.P ηm = B.P/I.P ηm = (B.P × I.P)/100 None of these ηm = I.P/B.P ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The correct mixture strength (by weight) for petrol is about 20.4 : 1 22.6 : 1 18.5 : 1 14.6 : 1 20.4 : 1 22.6 : 1 18.5 : 1 14.6 : 1 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In order to eliminate knocking in compression ignition engines, there should be High self ignition temperature of fuel Short delay period Low compression ratio Late auto-ignition High self ignition temperature of fuel Short delay period Low compression ratio Late auto-ignition ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In petrol engine, using a fixed octane rating fuel and fixed compression ratio, supercharging will _________ the knocking tendency. Decrease Not effected None of these Increase Decrease Not effected None of these Increase ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a diesel engine, the duration between the time of injection and ignition, is known as Delay period Pre-ignition period Period of ignition Burning period Delay period Pre-ignition period Period of ignition Burning period ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Stoichiometric ratio is Chemically correct air-fuel ratio by weight Actual air-fuel ratio for maximum efficiency None of these Chemically correct air-fuel ratio by volume Chemically correct air-fuel ratio by weight Actual air-fuel ratio for maximum efficiency None of these Chemically correct air-fuel ratio by volume ANSWER DOWNLOAD EXAMIANS APP
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