Internal Combustion Engines In a four stroke cycle diesel engine, the compression Starts at 40° after bottom dead center and ends at 10° before top dead center May start and end anywhere Starts at 40° before top dead center and ends at 40° after top dead center Starts at top dead center and ends at 40° before bottom dead center Starts at 40° after bottom dead center and ends at 10° before top dead center May start and end anywhere Starts at 40° before top dead center and ends at 40° after top dead center Starts at top dead center and ends at 40° before bottom dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The pressure at the end of compression in the case of diesel engine is of the order of 12 kg/cm 20 kg/cm 6 kg/cm 35 kg/cm 12 kg/cm 20 kg/cm 6 kg/cm 35 kg/cm ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The injector nozzle of a compression ignition engine is required to inject fuel at a sufficiently high pressure in order to All of these Ensure that penetration is not high Inject fuel in a chamber of high pressure at the end of compression stroke Inject fuel at a high velocity to facilitate atomization All of these Ensure that penetration is not high Inject fuel in a chamber of high pressure at the end of compression stroke Inject fuel at a high velocity to facilitate atomization ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Engine pistons are usually made of aluminium alloy because it Wear is less Is lighter Absorbs shocks Is stronger Wear is less Is lighter Absorbs shocks Is stronger ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The thermal efficiency of a petrol engine is _________ as compared to diesel engine. More Less Same None of these More Less Same None of these ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Detonation is harmful due to High intensity of knock causes crankshaft vibration and the engine runs rough None of these Excessive turbulence which removes most of the insulating gas boundary layer from the cylinder walls 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 None of these Excessive turbulence which removes most of the insulating gas boundary layer from the cylinder walls Increase in the rate of heat transfer, there is a reduction in the power output and efficiency of the engine ANSWER DOWNLOAD EXAMIANS APP
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