Internal Combustion Engines Stoichiometric ratio is Actual air-fuel ratio for maximum efficiency Chemically correct air-fuel ratio by volume None of these Chemically correct air-fuel ratio by weight Actual air-fuel ratio for maximum efficiency Chemically correct air-fuel ratio by volume None of these Chemically correct air-fuel ratio by weight ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The mechanical efficiency (ηm) of the engine is given by ηm = B.P/I.P ηm = I.P/B.P ηm = (B.P × I.P)/100 None of the listed here ηm = B.P/I.P ηm = I.P/B.P ηm = (B.P × I.P)/100 None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The ratio of the brake power to the indicated power is called Overall efficiency Mechanical efficiency Volumetric efficiency Indicated thermal efficiency Overall efficiency Mechanical efficiency Volumetric efficiency Indicated thermal efficiency ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The air standard efficiency of an I.C. engine is given by (where r = Compression ratio, and γ = Ratio of specific heats) None of these 1 + rγ - 1 1 - (1/rγ - 1) 1 - rγ - 1 None of these 1 + rγ - 1 1 - (1/rγ - 1) 1 - rγ - 1 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The mechanical efficiency (ηm) of the engine is given by 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 ηm = B.P/I.P ηm = (B.P × I.P)/100 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines If the compression ratio of an engine working on Otto cycle is increased from 5 to 7, the percentage increase in efficiency will be 0.04 0.08 0.14 0.02 0.04 0.08 0.14 0.02 ANSWER DOWNLOAD EXAMIANS APP
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