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/(V₀ + V₁) (V₀/V₁)/ [1 + (V₀/V₁)²] V₁/(V₀ + V₁) [2(V₀/V₁)]/ [1 + (V₀/V₁)²] V₀/(V₀ + V₁) (V₀/V₁)/ [1 + (V₀/V₁)²] V₁/(V₀ + V₁) ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The voltage required to produce a spark across the gap, between the sparking points is 4000 to 6000 volts 10,000 to 12,000 volts 2000 to 4000 volts 6000 to 10,000 volts 4000 to 6000 volts 10,000 to 12,000 volts 2000 to 4000 volts 6000 to 10,000 volts ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The loud pulsating noise heard within the cylinder of an internal combustion engine is known as Pre-ignition Turbulence Supercharging Detonation Pre-ignition Turbulence Supercharging Detonation ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines For maximum power generation, the air fuel ratio for a petrol engine for vehicles, is of the order of 0.62569444444444 0.37569444444444 0.75069444444444 0.50069444444444 0.62569444444444 0.37569444444444 0.75069444444444 0.50069444444444 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines If the compression ratio of an engine working on Otto cycle is increased from 5 to 7, the percentage increase in efficiency will be 0.02 0.08 0.14 0.04 0.02 0.08 0.14 0.04 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The basic requirement of a good combustion chamber is Low compression ratio Low volumetric efficiency Minimum turbulence High thermal efficiency and power output Low compression ratio Low volumetric efficiency Minimum turbulence High thermal efficiency and power output ANSWER DOWNLOAD EXAMIANS APP
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