Internal Combustion Engines The reference fuels for knock rating of spark ignition engines would include Normal octane and aniline Normal heptane and iso-octane Iso-octane and alpha-methyl naphthalene Iso-octane and normal hexane Normal octane and aniline Normal heptane and iso-octane Iso-octane and alpha-methyl naphthalene Iso-octane and normal hexane ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The pressure and temperature at the end of compression stroke in a petrol engine are of the order of 12-20 kg/cm² and 350-450°C 20-30 kg/cm² and 450-500°C 4-6 kg/cm² and 200-250°C 6-12 kg/cm² and 250-350°C 12-20 kg/cm² and 350-450°C 20-30 kg/cm² and 450-500°C 4-6 kg/cm² and 200-250°C 6-12 kg/cm² and 250-350°C ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a petrol engine, the mixture has the lowest pressure at the End of suction stroke Beginning of suction stroke End of compression stroke None of these End of suction stroke Beginning of suction stroke End of compression stroke None of these ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines If V₁ is the jet velocity and V₀ is the vehicle velocity, then propulsive efficiency of a turbojet engine is 2V₁ / (V₀ + V₁) 2V₀ / (V₀ + V₁) V₀ / (V₀ + V₁) V₁ / (V₀ + V₁) 2V₁ / (V₀ + V₁) 2V₀ / (V₀ + V₁) V₀ / (V₀ + V₁) V₁ / (V₀ + V₁) ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The air-fuel ratio in petrol engines is controlled by Injection Governing Controlling valve opening/closing Carburetion Injection Governing Controlling valve opening/closing Carburetion ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A diesel engine as compared to petrol engine (both running and rated load) is Other factors will decide it Less efficient Equally efficient More efficient Other factors will decide it Less efficient Equally efficient More efficient ANSWER DOWNLOAD EXAMIANS APP
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