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 1 - (1/rγ - 1) None of these 1 - rγ - 1 1 + rγ - 1 1 - (1/rγ - 1) None of these 1 - rγ - 1 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The working pressure and temperature inside the cylinder of an internal combustion engine is _________ as compared to a steam engine. Very low Very high Low High Very low Very high Low High ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The reference fuels for knock rating of spark ignition engines would include Iso-octane and normal hexane Iso-octane and alpha-methyl naphthalene Normal heptane and iso-octane Normal octane and aniline Iso-octane and normal hexane Iso-octane and alpha-methyl naphthalene Normal heptane and iso-octane Normal octane and aniline ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The basic requirement of a good combustion chamber is Minimum turbulence Low volumetric efficiency Low compression ratio High thermal efficiency and power output Minimum turbulence Low volumetric efficiency Low compression ratio High thermal efficiency and power output ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A higher compression ratio causes Any one of these Acceleration in the rate of combustion Increase in detonation Pre-ignition Any one of these Acceleration in the rate of combustion Increase in detonation Pre-ignition ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The thermal efficiency of diesel engines is about 0.5 0.3 0.7 0.15 0.5 0.3 0.7 0.15 ANSWER DOWNLOAD EXAMIANS APP
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