Internal Combustion Engines Air fuel ratio at which a petrol engine cannot work is 0.62569444444444 0.33402777777778 20 : 1 and less 0.41736111111111 0.62569444444444 0.33402777777778 20 : 1 and less 0.41736111111111 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a four stroke cycle diesel engine, the compression Starts at 40° after bottom dead center and ends at 10° before top dead center May start and end anywhere Starts at 40° before top dead center and ends at 40° after top dead center Starts at top dead center and ends at 40° before bottom dead center Starts at 40° after bottom dead center and ends at 10° before top dead center May start and end anywhere Starts at 40° before top dead center and ends at 40° after top dead center Starts at top dead center and ends at 40° before bottom dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In diesel engine, the compression ratio in comparison to expansion ratio is Less More Same Variable Less More Same Variable 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) None of these 1 - rγ - 1 1 + rγ - 1 1 - (1/rγ - 1) None of these 1 - rγ - 1 1 + rγ - 1 1 - (1/rγ - 1) ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Number of working strokes per min. for a two stroke cycle engine is ____ the speed of the engine in r.p.m. One-half Twice Four-times Equal to One-half Twice Four-times Equal to ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Supercharging is the process of Supplying compressed air to remove combustion products fully Supplying the intake of an engine with air at a density greater than the density of the surrounding atmosphere Injecting excess fuel for raising more loads Providing forced cooling air Supplying compressed air to remove combustion products fully Supplying the intake of an engine with air at a density greater than the density of the surrounding atmosphere Injecting excess fuel for raising more loads Providing forced cooling air ANSWER DOWNLOAD EXAMIANS APP
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