Internal Combustion Engines In petrol engine, using a fixed octane rating fuel and fixed compression ratio, supercharging will _________ the knocking tendency. None of these Not effected Increase Decrease None of these Not effected Increase Decrease ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a four stroke cycle diesel engine, the inlet valve May open and close anywhere Opens at 20° before top dead center and closes at 40° after bottom dead center Opens at top dead center and closes at bottom dead center Opens at 20° after top dead center and closes at 20° before bottom dead center May open and close anywhere Opens at 20° before top dead center and closes at 40° after bottom dead center Opens at top dead center and closes at bottom dead center Opens at 20° after top dead center and closes at 20° before bottom dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The scavenging efficiency of a four stroke cycle diesel engine is Between 95 and 100% Below 50% Between 85 and 95% Between 50 and 85% Between 95 and 100% Below 50% Between 85 and 95% Between 50 and 85% ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Scavenging is usually done to increase Thermal efficiency Speed Fuel consumption Power output Thermal efficiency Speed Fuel consumption Power output ANSWER DOWNLOAD EXAMIANS APP
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 - (1/rγ - 1) 1 - rγ - 1 None of these 1 + rγ - 1 1 - (1/rγ - 1) 1 - rγ - 1 None of these 1 + rγ - 1 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Iso-octane (C₈H₁₈) has octane number of 0 50 120 100 0 50 120 100 ANSWER DOWNLOAD EXAMIANS APP
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