Internal Combustion Engines Which of the following statement is correct regarding petrol engines? A fine fuel spray mixed with air is ignited by the heat of compression which is at a high pressure The fuel is first evaporated after passing through a carburettor and is mixed with air before ignition All of these The fuel supplied to the engine cylinder is mixed with necessary amount of air and the mixture in ignited with the help of a spark plug A fine fuel spray mixed with air is ignited by the heat of compression which is at a high pressure The fuel is first evaporated after passing through a carburettor and is mixed with air before ignition All of these The fuel supplied to the engine cylinder is mixed with necessary amount of air and the mixture in ignited with the help of a spark plug ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The brake power of a diesel engine, keeping other parameters constant, can be increased by Decreasing the pressure of intake air Increasing the temperature of intake air Increasing the pressure of intake air Decreasing the density of intake air Decreasing the pressure of intake air Increasing the temperature of intake air Increasing the pressure of intake air Decreasing the density of intake air ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The compression ignition engines are governed by Qualitative governing Quantitative governing Hit and miss governing Combination of (B) and (C) Qualitative governing Quantitative governing Hit and miss governing Combination of (B) and (C) ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The mechanical efficiency (ηm) of the engine is given by ηm = (B.P × I.P)/100 None of the listed here ηm = B.P/I.P ηm = I.P/B.P ηm = (B.P × I.P)/100 None of the listed here ηm = B.P/I.P ηm = I.P/B.P ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a typical medium speed 4-stroke cycle diesel engines Exhaust valve opens just after bottom dead center and closes just before top dead center May open and close anywhere Exhaust valve opens at bottom dead center and closes at top dead center Exhaust valve opens at 35° before bottom dead center and closes at 20° after top dead center Exhaust valve opens just after bottom dead center and closes just before top dead center May open and close anywhere Exhaust valve opens at bottom dead center and closes at top dead center Exhaust valve opens at 35° before bottom dead center and closes at 20° after top dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The spark ignition engines are governed by Hit and miss governing Combination of (B) and (C) Quantitative governing Qualitative governing Hit and miss governing Combination of (B) and (C) Quantitative governing Qualitative governing ANSWER DOWNLOAD EXAMIANS APP
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