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 All of these The fuel is first evaporated after passing through a carburettor and is mixed with air before ignition 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 All of these The fuel is first evaporated after passing through a carburettor and is mixed with air before ignition 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 pressure and temperature at the end of compression stroke in a petrol engine are of the order of 12-20 kg/cm² and 350-450°C 20-30 kg/cm² and 450-500°C 4-6 kg/cm² and 200-250°C 6-12 kg/cm² and 250-350°C 12-20 kg/cm² and 350-450°C 20-30 kg/cm² and 450-500°C 4-6 kg/cm² and 200-250°C 6-12 kg/cm² and 250-350°C ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The fuel valve in a four stroke cycle diesel engine Opens at 15° after top dead center and closes at 20° before bottom dead center Opens at top dead center and closes at bottom dead center Opens at 15° before top dead center and closes at 20° after top dead center May open and close anywhere Opens at 15° after top dead center and closes at 20° before bottom dead center Opens at top dead center and closes at bottom dead center Opens at 15° before top dead center and closes at 20° after top dead center May open and close anywhere ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Which of the following statement is correct regarding normal cetane? All of these It has long carbon chain structure Its chemical name is normal hexadecane It is a standard fuel used for knock rating of diesel engines All of these It has long carbon chain structure Its chemical name is normal hexadecane It is a standard fuel used for knock rating of diesel engines ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In compression ignition engines, swirl denotes a Radial motion of the gases in the chamber Haphazard motion of the gases in the chamber Rotary motion of the gases in the chamber None of the listed here Radial motion of the gases in the chamber Haphazard motion of the gases in the chamber Rotary motion of the gases in the chamber None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Air fuel ratio at which a petrol engine cannot work is 0.41736111111111 0.62569444444444 0.33402777777778 20 : 1 and less 0.41736111111111 0.62569444444444 0.33402777777778 20 : 1 and less ANSWER DOWNLOAD EXAMIANS APP
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