Internal Combustion Engines In a typical medium speed 4-stroke cycle diesel engine the inlet valve Opens at 20° before top dead center and closes at 35° after the bottom dead center Opens at top dead center and closes at 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 20° before top dead center and closes at 35° after the bottom dead center Opens at top dead center and closes at bottom dead center Opens at 10° after top dead center and closes 20° before the bottom dead center May open or close anywhere ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The air standard efficiency of an I.C. engine is given by (where r = Compression ratio, and γ = Ratio of specific heats) 1 - (1/rγ - 1) 1 + rγ - 1 None of these 1 - rγ - 1 1 - (1/rγ - 1) 1 + rγ - 1 None of these 1 - rγ - 1 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The maximum propulsive efficiency of a turbojet engine is at a speed of 3000 km/h 2400 km/h 1000 km/h 2000 km/h 3000 km/h 2400 km/h 1000 km/h 2000 km/h ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a four stroke cycle, the minimum temperature inside the engine cylinder occurs at the End of suction stroke End of exhaust stroke Beginning of suction stroke Beginning of exhaust stroke End of suction stroke End of exhaust stroke Beginning of suction stroke Beginning of exhaust stroke ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Fuel oil consumption guarantees for I .C. engine are usually based on Low heat value of oil High heat value of oil Calorific value of fuel Net calorific value of oil Low heat value of oil High heat value of oil Calorific value of fuel Net calorific value of oil ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Which of the following statement is correct regarding normal cetane? It is a standard fuel used for knock rating of diesel engines All of these Its chemical name is normal hexadecane It has long carbon chain structure It is a standard fuel used for knock rating of diesel engines All of these Its chemical name is normal hexadecane It has long carbon chain structure ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS