Internal Combustion Engines Air fuel ratio at which a petrol engine cannot work is 0.33402777777778 0.41736111111111 0.62569444444444 20 : 1 and less 0.33402777777778 0.41736111111111 0.62569444444444 20 : 1 and less ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The exhaust valve in a four stroke cycle petrol engine Opens at bottom dead center and closes at top dead center Opens at 50° before bottom dead center and closes at 15° after top dead center May open and close anywhere Opens at 50° after bottom dead center and closes at 15° before top dead center Opens at bottom dead center and closes at top dead center Opens at 50° before bottom dead center and closes at 15° after top dead center May open and close anywhere Opens at 50° after bottom dead center and closes at 15° before top dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The thermal efficiency of a diesel cycle having fixed compression ratio, with increase in cut-off ratio will Be independent May increase or decrease depending on other factors Decrease Increase Be independent May increase or decrease depending on other factors Decrease Increase ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines If one cylinder of a diesel engine receives more fuel than the others, then for that cylinder the Exhaust will be smoky Engine starts overheating Piston rings would stick into piston grooves Scavenging occurs Exhaust will be smoky Engine starts overheating Piston rings would stick into piston grooves Scavenging occurs ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The object of providing masked inlet valve in the air passage of compression ignition engines is to Induce primary swirl Control air flow Enhance flow rate Induce secondary turbulence Induce primary swirl Control air flow Enhance flow rate Induce secondary turbulence ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A higher compression ratio causes Pre-ignition Increase in detonation Acceleration in the rate of combustion Any one of these Pre-ignition Increase in detonation Acceleration in the rate of combustion Any one of these ANSWER DOWNLOAD EXAMIANS APP
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