Internal Combustion Engines If the compression ratio in I.C. engine increases, then its thermal efficiency will Remain same Decrease None of these Increase Remain same Decrease None of these Increase ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A petrol engine has compression ratio from 6 to 10 15 to 25 10 to 15 25 to 40 6 to 10 15 to 25 10 to 15 25 to 40 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Iso-octane (C₈H₁₈) has octane number of 0 50 100 120 0 50 100 120 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The fuel valve in a four stroke cycle diesel engine Opens at top dead center and closes at bottom dead center Opens at 15° after top dead center and closes at 20° before bottom dead center May open and close anywhere Opens at 15° before top dead center and closes at 20° after top dead center Opens at top dead center and closes at bottom dead center Opens at 15° after top dead center and closes at 20° before bottom dead center May open and close anywhere Opens at 15° before top dead center and closes at 20° after top dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The knocking tendency in compression ignition engines for a given fuel will be None of these Dependent on other factors Enhanced by increasing compression ratio Enhanced by decreasing compression ratio None of these Dependent on other factors Enhanced by increasing compression ratio Enhanced by decreasing compression ratio ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The voltage required to produce a spark across the gap, between the sparking points is 6000 to 10,000 volts 10,000 to 12,000 volts 2000 to 4000 volts 4000 to 6000 volts 6000 to 10,000 volts 10,000 to 12,000 volts 2000 to 4000 volts 4000 to 6000 volts ANSWER DOWNLOAD EXAMIANS APP
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