Internal Combustion Engines If V₁ is the jet velocity and V₀ is the vehicle velocity, then propulsive efficiency of a turbojet engine is V₀ / (V₀ + V₁) V₁ / (V₀ + V₁) 2V₀ / (V₀ + V₁) 2V₁ / (V₀ + V₁) V₀ / (V₀ + V₁) V₁ / (V₀ + V₁) 2V₀ / (V₀ + V₁) 2V₁ / (V₀ + V₁) ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Which one of the following event would reduce volumetric efficiency of a vertical compression ignition engine? Inlet valve closing before bottom dead center Inlet valve closing after bottom dead center Exhaust valve closing after top dead center Inlet valve opening before top dead center Inlet valve closing before bottom dead center Inlet valve closing after bottom dead center Exhaust valve closing after top dead center Inlet valve opening before top dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The pressure at the end of compression, in petrol engines, is approximately 25 bar 35 bar 20 bar 10 bar 25 bar 35 bar 20 bar 10 bar ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Scavenging is usually done to increase Power output Speed Thermal efficiency Fuel consumption Power output Speed Thermal efficiency Fuel consumption ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The higher combustion chamber wall temperature in compression ignition engines will _________ knocking tendency. Reduce Not effect None of these Increase Reduce Not effect None of these Increase ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The ignition quality of petrol is expressed by Cetane number All of these Octane number Calorific value Cetane number All of these Octane number Calorific value ANSWER DOWNLOAD EXAMIANS APP
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