Internal Combustion Engines In a four stroke cycle diesel engine, the exhaust valve Opens at 30° before bottom dead centre and closes at 10° after top dead centre Opens at bottom dead centre and closes at top dead centre Opens at 30° after bottom dead centre and closes at 10° before 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 bottom dead centre and closes at top dead centre Opens at 30° after bottom dead centre and closes at 10° before top dead centre May open and close anywhere ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Engine pistons are usually made of aluminium alloy because it Wear is less Is stronger Absorbs shocks Is lighter Wear is less Is stronger Absorbs shocks Is lighter ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The frictional power (F.P.) is given by P. P./I.P. P. F.P. = F.P. = I.P. - F.P. = I.P./ F.P. = P. - I.P. P. P./I.P. P. F.P. = F.P. = I.P. - F.P. = I.P./ F.P. = P. - I.P. ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The volumetric efficiency of a well designed engine may be 30 to 40% 40 to 60% 60 to 70% 75 to 90% 30 to 40% 40 to 60% 60 to 70% 75 to 90% ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a petrol engine, the fuel supplied to the engine cylinder is mixed with required quantity of air and the mixture is ignited with a Fuel injector Fuel pump Spark plug None of these Fuel injector Fuel pump Spark plug None of these ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Supercharging is the process of Injecting excess fuel for raising more loads Supplying compressed air to remove combustion products fully Providing forced cooling air Supplying the intake of an engine with air at a density greater than the density of the surrounding atmosphere Injecting excess fuel for raising more loads Supplying compressed air to remove combustion products fully Providing forced cooling air Supplying the intake of an engine with air at a density greater than the density of the surrounding atmosphere ANSWER DOWNLOAD EXAMIANS APP
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