Internal Combustion Engines In a typical medium speed 4-stroke cycle diesel engines Exhaust valve opens at bottom dead center and closes at top dead center May open and close anywhere Exhaust valve opens just after bottom dead center and closes just before top dead center Exhaust valve opens at 35° before bottom dead center and closes at 20° after top dead center Exhaust valve opens at bottom dead center and closes at top dead center May open and close anywhere Exhaust valve opens just after bottom dead center and closes just before 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 A diesel engine, during suction stroke, draws None of these Air only A mixture of diesel and air Diesel only None of these Air only A mixture of diesel and air Diesel only ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A petrol engine has compression ratio from 25 to 40 6 to 10 15 to 25 10 to 15 25 to 40 6 to 10 15 to 25 10 to 15 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 2000 to 4000 volts 10,000 to 12,000 volts 4000 to 6000 volts 6000 to 10,000 volts 2000 to 4000 volts 10,000 to 12,000 volts 4000 to 6000 volts 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
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
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