Internal Combustion Engines If Vâ‚ is the jet velocity and Vâ‚€ is the vehicle velocity, then the propulsive efficiency of a rocket is given by [2(Vâ‚€/Vâ‚)]/ [1 + (Vâ‚€/Vâ‚)²] Vâ‚€/(Vâ‚€ + Vâ‚) (Vâ‚€/Vâ‚)/ [1 + (Vâ‚€/Vâ‚)²] Vâ‚/(Vâ‚€ + Vâ‚) [2(Vâ‚€/Vâ‚)]/ [1 + (Vâ‚€/Vâ‚)²] Vâ‚€/(Vâ‚€ + Vâ‚) (Vâ‚€/Vâ‚)/ [1 + (Vâ‚€/Vâ‚)²] Vâ‚/(Vâ‚€ + Vâ‚) ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The output of a diesel engine can be increased without increasing the engine revolution or size in following way Supercharging Feeding more fuel Heating incoming air Scavenging Supercharging Feeding more fuel Heating incoming air Scavenging ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a four stroke cycle petrol engine, the charge is ignited at 30° before bottom dead center 30° after top dead center 30° before top dead center 30° after bottom dead center 30° before bottom dead center 30° after top dead center 30° before top dead center 30° after bottom dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The ratio of the indicated thermal efficiency to the air standard efficiency is known as Volumetric efficiency Overall efficiency Mechanical efficiency Relative efficiency Volumetric efficiency Overall efficiency Mechanical efficiency Relative efficiency ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In petrol engines, the delay period is of the order of 0.003 second 0.004 second 0.001 second 0.002 second 0.003 second 0.004 second 0.001 second 0.002 second 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
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