Internal Combustion Engines In a four stroke cycle petrol engine, the charge is ignited at 30° before top dead center 30° before bottom dead center 30° after top dead center 30° after bottom dead center 30° before top dead center 30° before bottom dead center 30° after top dead center 30° after bottom dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The ratio of the brake power to the indicated power is called Volumetric efficiency Indicated thermal efficiency Mechanical efficiency Overall efficiency Volumetric efficiency Indicated thermal efficiency Mechanical efficiency Overall efficiency ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A gas engine has a swept volume of 300 cm3 and clearance volume of 25 cm3. Its volumetric efficiency is 0.88 and mechanical efficiency is 0.90. The volume of the mixture taken in per stroke is 286 cm3 252 cm3 248 cm3 264 cm3 286 cm3 252 cm3 248 cm3 264 cm3 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The exhaust valve in a four stroke cycle petrol engine Opens at 50° before bottom dead center and closes at 15° after top dead center Opens at bottom dead center and closes at top dead center Opens at 50° after bottom dead center and closes at 15° before top dead center May open and close anywhere Opens at 50° before bottom dead center and closes at 15° after top dead center Opens at bottom dead center and closes at top dead center Opens at 50° after bottom dead center and closes at 15° before top dead center May open and close anywhere ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Theoretically, a four stroke cycle engine should develop _________ power as that of a two stroke cycle engine. Four times Half Same Double Four times Half Same Double ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Pre-ignition is caused by the spontaneous combustion of the mixture before the end of the compression stroke, and is due to Cylinder walls being too hot Overheated spark plug points Red hot carbon deposits on cylinder walls Any one of the listed here Cylinder walls being too hot Overheated spark plug points Red hot carbon deposits on cylinder walls Any one of the listed here ANSWER DOWNLOAD EXAMIANS APP
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