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 An hmh flame speed is obtained in diesel engine when air fuel ratio is About 10% of rich mixture Chemically correct mixture About 35% of rich mixture Uniform throughout the mixture About 10% of rich mixture Chemically correct mixture About 35% of rich mixture Uniform throughout the mixture ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The delay period in compression ignition engines depends upon All of these Relative velocity between the fuel injection and air turbulence pressure of residual gases Nature of the fuel mixture strength Temperature and pressure in the cylinder at the time of injection All of these Relative velocity between the fuel injection and air turbulence pressure of residual gases Nature of the fuel mixture strength Temperature and pressure in the cylinder at the time of injection ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The knocking tendency in spark ignition engines may be decreased by Reducing the compression ratio Controlling the exhaust temperature Controlling the ignition timing Controlling the air-fuel mixture Reducing the compression ratio Controlling the exhaust temperature Controlling the ignition timing Controlling the air-fuel mixture ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The scavenging efficiency of a four stroke cycle diesel engine is Between 95 and 100% Between 50 and 85% Between 85 and 95% Below 50% Between 95 and 100% Between 50 and 85% Between 85 and 95% Below 50% ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In order to eliminate knocking in compression ignition engines, there should be High self ignition temperature of fuel Short delay period Late auto-ignition Low compression ratio High self ignition temperature of fuel Short delay period Late auto-ignition Low compression ratio ANSWER DOWNLOAD EXAMIANS APP
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