Internal Combustion Engines For maximum power generation, the air fuel ratio for a petrol engine for vehicles, is of the order of 0.50069444444444 0.62569444444444 0.37569444444444 0.75069444444444 0.50069444444444 0.62569444444444 0.37569444444444 0.75069444444444 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 2V₁ / (V₀ + V₁) V₁ / (V₀ + V₁) V₀ / (V₀ + V₁) 2V₀ / (V₀ + V₁) 2V₁ / (V₀ + V₁) V₁ / (V₀ + V₁) V₀ / (V₀ + V₁) 2V₀ / (V₀ + V₁) ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The ignition quality of petrol is expressed by Calorific value All of these Octane number Cetane number Calorific value All of these Octane number Cetane number ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The reason for supercharging in any engine is to Increase power Increase efficiency Effect fuel economy Reduce weight and bulk for a given output Increase power Increase efficiency Effect fuel economy Reduce weight and bulk for a given output ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a typical medium speed 4-stroke cycle diesel engine the inlet valve 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 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 expansion of fuel in a four stroke cycle diesel engine Starts at 15° before top dead center and ends at 30° after top dead center Starts at 15° after top dead center and ends at 30° before bottom dead center Starts at top dead center and ends at 30° after top dead center May start and end anywhere Starts at 15° before top dead center and ends at 30° after top dead center Starts at 15° after top dead center and ends at 30° before bottom dead center Starts at top dead center and ends at 30° after top dead center May start and end anywhere ANSWER DOWNLOAD EXAMIANS APP
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