Internal Combustion Engines The mechanical efficiency (ηm) of the engine is given by ηm = B.P/I.P None of these ηm = (B.P × I.P)/100 ηm = I.P/B.P ηm = B.P/I.P None of these ηm = (B.P × I.P)/100 ηm = I.P/B.P ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines For maximum power generation, the air fuel ratio for a petrol engine for vehicles, is of the order of 0.62569444444444 0.75069444444444 0.37569444444444 0.50069444444444 0.62569444444444 0.75069444444444 0.37569444444444 0.50069444444444 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The knocking tendency in compression ignition engines for a given fuel will be Dependent on other factors None of these Enhanced by decreasing compression ratio Enhanced by increasing compression ratio Dependent on other factors None of these Enhanced by decreasing compression ratio Enhanced by increasing compression ratio ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines As a result of detonation in an I.C. engine, following parameter attains very high value Rate of rise of temperature Peak temperature Rate of rise of pressure Peak pressure Rate of rise of temperature Peak temperature Rate of rise of pressure Peak pressure ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Does the supply of scavenging air at a density greater than that of atmosphere mean engine is supercharged? Unpredictable To some extent Yes No Unpredictable To some extent Yes No ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In diesel engine, the compression ratio in comparison to expansion ratio is Less More Variable Same Less More Variable Same ANSWER DOWNLOAD EXAMIANS APP
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