Internal Combustion Engines In a four stroke cycle diesel engine, the exhaust valve Opens at bottom dead centre and closes at top dead centre May open and close anywhere Opens at 30° before bottom dead centre and closes at 10° after top dead centre Opens at 30° after bottom dead centre and closes at 10° before top dead centre Opens at bottom dead centre and closes at top dead centre May open and close anywhere Opens at 30° before bottom dead centre and closes at 10° after top dead centre Opens at 30° after bottom dead centre and closes at 10° before top dead centre ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Installation of supercharger on a four cycle diesel engine can result in the following percentage increase in power Up to 100% Up to 50% Up to 75% Up to 35% Up to 100% Up to 50% Up to 75% Up to 35% ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The reason for supercharging in any engine is to Effect fuel economy Reduce weight and bulk for a given output Increase efficiency Increase power Effect fuel economy Reduce weight and bulk for a given output Increase efficiency Increase power 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 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 High intensity of knock causes crankshaft vibration and the engine runs rough None of these ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The theoretically correct mixture of air and petrol is 10 : 1 20 : 1 25 : 1 15 : 1 10 : 1 20 : 1 25 : 1 15 : 1 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The inlet valve of a four stroke cycle internal combustion engine remains open for 230° 180° 270° 130° 230° 180° 270° 130° ANSWER DOWNLOAD EXAMIANS APP
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