Internal Combustion Engines In a typical medium speed 4-stroke cycle diesel engines Exhaust valve opens just after bottom dead center and closes just before top dead center Exhaust valve opens at bottom dead center and closes at top dead center Exhaust valve opens at 35° before bottom dead center and closes at 20° after top dead center May open and close anywhere Exhaust valve opens just after bottom dead center and closes just before top dead center Exhaust valve opens at bottom dead center and closes at top dead center Exhaust valve opens at 35° before bottom dead center and closes at 20° after top dead center May open and close anywhere ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The accumulation of carbon in a cylinder results in increase of Volumetric efficiency Clearance volume Effective compression ratio Ignition time Volumetric efficiency Clearance volume Effective compression ratio Ignition time ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The operation of forcing additional air under pressure in the engine cylinder is known as Pre-ignition Turbulence Scavenging Supercharging Pre-ignition Turbulence Scavenging Supercharging ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The scavenging efficiency of a four stroke cycle diesel engine is Below 50% Between 85 and 95% Between 50 and 85% Between 95 and 100% Below 50% Between 85 and 95% Between 50 and 85% Between 95 and 100% 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 264 cm3 286 cm3 252 cm3 248 cm3 264 cm3 286 cm3 252 cm3 248 cm3 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines If the compression ratio in I.C. engine increases, then its thermal efficiency will Decrease Remain same None of these Increase Decrease Remain same None of these Increase ANSWER DOWNLOAD EXAMIANS APP
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