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 30° after bottom dead centre and closes at 10° before top dead centre Opens at bottom dead centre and closes at 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 30° after bottom dead centre and closes at 10° before top dead centre Opens at bottom dead centre and closes at top dead centre May open and close anywhere ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The minimum cranking speed in case of petrol engine is about 250 - 300 rpm One fourth of operating speed Half the operating speed 60 - 80 rpm 250 - 300 rpm One fourth of operating speed Half the operating speed 60 - 80 rpm ANSWER DOWNLOAD EXAMIANS APP
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 May open and close anywhere 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 Exhaust valve opens just after bottom dead center and closes just before top dead center May open and close anywhere 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 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A two stroke cycle engine gives ________ the number of power strokes as compared to the four stroke cycle engine, at the same engine speed. Four times Half Double Same Four times Half Double Same ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines If V₁ is the jet velocity and V₀ is the vehicle velocity, then propulsive efficiency of a turbojet engine is V₁ / (V₀ + V₁) V₀ / (V₀ + V₁) 2V₁ / (V₀ + V₁) 2V₀ / (V₀ + V₁) V₁ / (V₀ + V₁) V₀ / (V₀ + V₁) 2V₁ / (V₀ + V₁) 2V₀ / (V₀ + V₁) ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The theoretically correct air fuel ratio for petrol engine is of the order of 0.37569444444444 0.50069444444444 0.62569444444444 0.25069444444444 0.37569444444444 0.50069444444444 0.62569444444444 0.25069444444444 ANSWER DOWNLOAD EXAMIANS APP
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