Internal Combustion Engines In a four stroke cycle petrol engine, the expansion Starts at top dead center and ends at bottom dead center Starts at 30° after top dead center and ends at 50° after bottom dead center Starts at 30° before top dead center and ends at 50° before bottom dead center May start and end anywhere Starts at top dead center and ends at bottom dead center Starts at 30° after top dead center and ends at 50° after bottom dead center Starts at 30° before top dead center and ends at 50° before bottom dead center May start and end anywhere ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The knocking tendency in spark ignition engines may be decreased by Controlling the air-fuel mixture 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 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The delay period in compression ignition engines depends upon Nature of the fuel mixture strength Relative velocity between the fuel injection and air turbulence pressure of residual gases Temperature and pressure in the cylinder at the time of injection All of these Nature of the fuel mixture strength Relative velocity between the fuel injection and air turbulence pressure of residual gases Temperature and pressure in the cylinder at the time of injection All of these ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines An engine indicator is used to determine the following m.e.p. and I.H.P. Volume of cylinder Temperature Speed m.e.p. and I.H.P. Volume of cylinder Temperature Speed ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The increase of cooling water temperature in petrol engine will _________ the knocking tendency. Decrease None of these Not effect Increase Decrease None of these Not effect Increase ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The correct mixture strength (by weight) for petrol is about 22.6 : 1 18.5 : 1 14.6 : 1 20.4 : 1 22.6 : 1 18.5 : 1 14.6 : 1 20.4 : 1 ANSWER DOWNLOAD EXAMIANS APP
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