Internal Combustion Engines If V₁ is the jet velocity and V₀ is the vehicle velocity, then the propulsive efficiency of a rocket is given by [2(V₀/V₁)]/ [1 + (V₀/V₁)²] (V₀/V₁)/ [1 + (V₀/V₁)²] V₀/(V₀ + V₁) V₁/(V₀ + V₁) [2(V₀/V₁)]/ [1 + (V₀/V₁)²] (V₀/V₁)/ [1 + (V₀/V₁)²] V₀/(V₀ + V₁) V₁/(V₀ + V₁) ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The maximum propulsive efficiency of a turbojet engine is at a speed of 2000 km/h 3000 km/h 2400 km/h 1000 km/h 2000 km/h 3000 km/h 2400 km/h 1000 km/h ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Pre-ignition is caused by the spontaneous combustion of the mixture before the end of the compression stroke, and is due to Cylinder walls being too hot Overheated spark plug points Red hot carbon deposits on cylinder walls Any one of the listed here Cylinder walls being too hot Overheated spark plug points Red hot carbon deposits on cylinder walls Any one of the listed here ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The specific fuel consumption of a petrol engine compared to diesel engine of same H.P. is More Less or more depending on operating conditions Same Less More Less or more depending on operating conditions Same Less ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Fuel consumption of diesel engines is not guaranteed at one quarter load because at such low loads The friction is high The engine is rarely operated The friction is unpredictable The small difference in cooling water temperature or in internal friction has a disproportionate effect The friction is high The engine is rarely operated The friction is unpredictable The small difference in cooling water temperature or in internal friction has a disproportionate effect ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The accumulation of carbon in a cylinder results in increase of Clearance volume Volumetric efficiency Effective compression ratio Ignition time Clearance volume Volumetric efficiency Effective compression ratio Ignition time ANSWER DOWNLOAD EXAMIANS APP
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