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) 1 - rγ - 1 None of these 1 + rγ - 1 1 - (1/rγ - 1) 1 - rγ - 1 None of these ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Engine pistons are usually made of aluminium alloy because it Is lighter Is stronger Wear is less Absorbs shocks Is lighter Is stronger Wear is less Absorbs shocks ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The pressure at the end of compression, in diesel engines, is approximately 10 bar 35 bar 20 bar 25 bar 10 bar 35 bar 20 bar 25 bar ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The ratio of the volume of charge admitted at N.T.P. to the swept volume of the piston is called Overall efficiency Mechanical efficiency Volumetric efficiency Relative efficiency Overall efficiency Mechanical efficiency Volumetric efficiency Relative efficiency ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A diesel engine has 2 valves 3 valves 1 valve 4 valves 2 valves 3 valves 1 valve 4 valves ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A two stroke cycle engine gives ________ the number of power strokes as compared to the four stroke cycle engine, at the same engine speed. Same Double Half Four times Same Double Half Four times ANSWER DOWNLOAD EXAMIANS APP
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