Internal Combustion Engines The thermal efficiency of petrol and gas engines is about 0.3 0.5 0.7 0.15 0.3 0.5 0.7 0.15 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Detonation is harmful due to Excessive turbulence which removes most of the insulating gas boundary layer from the cylinder walls None of these Increase in the rate of heat transfer, there is a reduction in the power output and efficiency of the engine High intensity of knock causes crankshaft vibration and the engine runs rough Excessive turbulence which removes most of the insulating gas boundary layer from the cylinder walls None of these Increase in the rate of heat transfer, there is a reduction in the power output and efficiency of the engine High intensity of knock causes crankshaft vibration and the engine runs rough ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a cycle, the spark lasts roughly for 0.1 sec 0.01 sec 0.001 sec 1 sec 0.1 sec 0.01 sec 0.001 sec 1 sec 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 Which of the following does not relate to a spark ignition engine? Ignition coil Spark plug Carburettor Fuel injector Ignition coil Spark plug Carburettor Fuel injector ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a four stroke cycle petrol engine, the compression Starts at 40° before bottom dead centre and ends at 30° after bottom dead centre Starts at bottom dead centre and ends at top dead centre May start and end anywhere Starts at 40° after bottom dead centre and ends at 30° before top dead centre Starts at 40° before bottom dead centre and ends at 30° after bottom dead centre Starts at bottom dead centre and ends at top dead centre May start and end anywhere Starts at 40° after bottom dead centre and ends at 30° before top dead centre ANSWER DOWNLOAD EXAMIANS APP
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