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) 1 + rγ - 1 None of these 1 - rγ - 1 1 - (1/rγ - 1) 1 + rγ - 1 None of these 1 - rγ - 1 1 - (1/rγ - 1) ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Stoichiometric ratio is None of these Actual air-fuel ratio for maximum efficiency Chemically correct air-fuel ratio by weight Chemically correct air-fuel ratio by volume None of these Actual air-fuel ratio for maximum efficiency Chemically correct air-fuel ratio by weight Chemically correct air-fuel ratio by volume ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The specific fuel consumption of a petrol engine compared to diesel engine of same H.P. is More Same Less Less or more depending on operating conditions More Same Less Less or more depending on operating conditions 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 None of these Not effected Increase Decrease None of these Not effected Increase ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Which of the following is not an intern’s combustion engine? 2-stroke petrol engine Diesel engine 4-stroke petrol engine Steam turbine 2-stroke petrol engine Diesel engine 4-stroke petrol engine Steam turbine ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A mixture containing 65% of iso-octane and 35% of normal heptane will have Cetane number 35 Cetane number 65 Octane number 35 Octane number 65 Cetane number 35 Cetane number 65 Octane number 35 Octane number 65 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS