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 Scavenging Heating incoming air Supercharging Feeding more fuel Scavenging Heating incoming air ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Detonation is harmful due to None of these Increase in the rate of heat transfer, there is a reduction in the power output and efficiency of the engine High intensity of knock causes crankshaft vibration and the engine runs rough Excessive turbulence which removes most of the insulating gas boundary layer from the cylinder walls None of these Increase in the rate of heat transfer, there is a reduction in the power output and efficiency of the engine High intensity of knock causes crankshaft vibration and the engine runs rough Excessive turbulence which removes most of the insulating gas boundary layer from the cylinder walls ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines If one cylinder of a diesel engine receives more fuel than the others, then for that cylinder the Exhaust will be smoky Scavenging occurs Piston rings would stick into piston grooves Engine starts overheating Exhaust will be smoky Scavenging occurs Piston rings would stick into piston grooves Engine starts overheating ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A petrol engine has compression ratio from 25 to 40 15 to 25 10 to 15 6 to 10 25 to 40 15 to 25 10 to 15 6 to 10 ANSWER DOWNLOAD EXAMIANS APP
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] V₁/(V₀ + V₁) V₀/(V₀ + V₁) [2(V₀/V₁)]/ [1 + (V₀/V₁)²] (V₀/V₁)/ [1 + (V₀/V₁)²] V₁/(V₀ + V₁) V₀/(V₀ + V₁) ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The ratio of indicated thermal efficiency to the corresponding air standard cycle efficiency is called Relative efficiency Net efficiency Overall efficiency Efficiency ratio Relative efficiency Net efficiency Overall efficiency Efficiency ratio ANSWER DOWNLOAD EXAMIANS APP
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