Internal Combustion Engines Number of working strokes per min. for a four stroke cycle engine are _________ the speed of the engine in r.p.m. One-half Twice Equal to Four-times One-half Twice Equal to Four-times ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The reference fuels for knock rating of spark ignition engines would include Normal heptane and iso-octane Normal octane and aniline Iso-octane and alpha-methyl naphthalene Iso-octane and normal hexane Normal heptane and iso-octane Normal octane and aniline Iso-octane and alpha-methyl naphthalene Iso-octane and normal hexane ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines As a result of detonation in an I.C. engine, following parameter attains very high value Peak temperature Rate of rise of temperature Rate of rise of pressure Peak pressure Peak temperature Rate of rise of temperature Rate of rise of pressure Peak pressure ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The volumetric efficiency of a well designed engine may be 40 to 60% 30 to 40% 75 to 90% 60 to 70% 40 to 60% 30 to 40% 75 to 90% 60 to 70% ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The knocking tendency in compression ignition engines for a given fuel will be Enhanced by decreasing compression ratio None of these Enhanced by increasing compression ratio Dependent on other factors Enhanced by decreasing compression ratio None of these Enhanced by increasing compression ratio Dependent on other factors ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Air fuel ratio at which a petrol engine cannot work is 20 : 1 and less 0.62569444444444 0.41736111111111 0.33402777777778 20 : 1 and less 0.62569444444444 0.41736111111111 0.33402777777778 ANSWER DOWNLOAD EXAMIANS APP