Internal Combustion Engines In a typical medium speed 4-stroke cycle diesel engine the inlet valve Opens at 10° after top dead center and closes 20° before the bottom dead center May open or close anywhere Opens at top dead center and closes at bottom dead center Opens at 20° before top dead center and closes at 35° after the bottom dead center Opens at 10° after top dead center and closes 20° before the bottom dead center May open or close anywhere Opens at top dead center and closes at bottom dead center Opens at 20° before top dead center and closes at 35° after the bottom dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The mechanical efficiency (ηm) of the engine is given by None of these ηm = I.P/B.P ηm = (B.P × I.P)/100 ηm = B.P/I.P None of these ηm = I.P/B.P ηm = (B.P × I.P)/100 ηm = B.P/I.P ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a petrol engine, the mixture has the lowest pressure at the None of these End of compression stroke Beginning of suction stroke End of suction stroke None of these End of compression stroke Beginning of suction stroke End of suction stroke ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Does the supply of scavenging air at a density greater than that of atmosphere mean engine is supercharged? To some extent No Yes Unpredictable To some extent No Yes Unpredictable ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Engine pistons are usually made of aluminium alloy because it Absorbs shocks Wear is less Is lighter Is stronger Absorbs shocks Wear is less Is lighter Is stronger ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines All heat engines utilize Low heat value of oil Calorific value of fuel Net calorific value of oil High heat value of oil Low heat value of oil Calorific value of fuel Net calorific value of oil High heat value of oil ANSWER DOWNLOAD EXAMIANS APP
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