Internal Combustion Engines Which of the following fuel has little tendency towards detonation? Alcohol Iso-octane Normal heptane Benzene Alcohol Iso-octane Normal heptane Benzene 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 Which of the following is not an intern’s combustion engine? 2-stroke petrol engine 4-stroke petrol engine Steam turbine Diesel engine 2-stroke petrol engine 4-stroke petrol engine Steam turbine Diesel engine ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The thermal efficiency of a standard Otto cycle for a compression ratio of 5.5 will be 0.5 0.25 1 0.7 0.5 0.25 1 0.7 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] V₁/(V₀ + V₁) V₀/(V₀ + V₁) (V₀/V₁)/ [1 + (V₀/V₁)²] [2(V₀/V₁)]/ [1 + (V₀/V₁)²] V₁/(V₀ + V₁) V₀/(V₀ + V₁) (V₀/V₁)/ [1 + (V₀/V₁)²] ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Detonation is harmful due to Excessive turbulence which removes most of the insulating gas boundary layer from the cylinder walls None of these High intensity of knock causes crankshaft vibration and the engine runs rough Increase in the rate of heat transfer, there is a reduction in the power output and efficiency of the engine Excessive turbulence which removes most of the insulating gas boundary layer from the cylinder walls None of these High intensity of knock causes crankshaft vibration and the engine runs rough Increase in the rate of heat transfer, there is a reduction in the power output and efficiency of the engine ANSWER DOWNLOAD EXAMIANS APP
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