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 supplied to the engine cylinder is mixed with necessary amount of air and the mixture in ignited with the help of a spark plug All of these The fuel is first evaporated after passing through a carburettor and is mixed with air before ignition A fine fuel spray mixed with air is ignited by the heat of compression which is at a high pressure 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 All of these The fuel is first evaporated after passing through a carburettor and is mixed with air before ignition ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The voltage required to produce a spark across the gap, between the sparking points is 4000 to 6000 volts 10,000 to 12,000 volts 6000 to 10,000 volts 2000 to 4000 volts 4000 to 6000 volts 10,000 to 12,000 volts 6000 to 10,000 volts 2000 to 4000 volts ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The ratio of indicated thermal efficiency to the corresponding air standard cycle efficiency is called Efficiency ratio Net efficiency Relative efficiency Overall efficiency Efficiency ratio Net efficiency Relative efficiency Overall efficiency ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Iso-octane (C₈Hâ‚₈) has octane number of 100 120 50 100 120 50 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The delay period in compression ignition engines depends upon Temperature and pressure in the cylinder at the time of injection All of these Relative velocity between the fuel injection and air turbulence pressure of residual gases Nature of the fuel mixture strength Temperature and pressure in the cylinder at the time of injection All of these Relative velocity between the fuel injection and air turbulence pressure of residual gases Nature of the fuel mixture strength ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A gas engine has a swept volume of 300 cm3 and clearance volume of 25 cm3. Its volumetric efficiency is 0.88 and mechanical efficiency is 0.90. The volume of the mixture taken in per stroke is 286 cm3 248 cm3 264 cm3 252 cm3 286 cm3 248 cm3 264 cm3 252 cm3 ANSWER DOWNLOAD EXAMIANS APP
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