Compressors, Gas Turbines and Jet Engines A rocket works with maximum overall efficiency when air craft velocity is equal to the Jet velocity Twice the jet velocity Average of the jet velocity Half the jet velocity Jet velocity Twice the jet velocity Average of the jet velocity Half the jet velocity ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The area of actual indicator diagram on an air compressor as compared to area of ideal indicator diagram is Less More/less depending on compressor capacity More Same Less More/less depending on compressor capacity More Same ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The volumetric efficiency of compressor with increase in compression ratio will Decrease Remain same May increase or decrease depending on clearance volume Increase Decrease Remain same May increase or decrease depending on clearance volume Increase ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For perfect intercooling in a two stage compressor p₂/p₁ = p₃/p₂ p₁/p₃ = p₂/p₁ p₁ = p3 p₁ = p₂ p3 p₂/p₁ = p₃/p₂ p₁/p₃ = p₂/p₁ p₁ = p3 p₁ = p₂ p3 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In gas turbines, high thermal efficiency is obtained in Closed cycle & Open cycle Closed cycle Open cycle Closed/open depending on other considerations Closed cycle & Open cycle Closed cycle Open cycle Closed/open depending on other considerations ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In jet engines, paraffin is usually used as the fuel because of its Low freezing point High calorific value Ease of atomisation Both (A) and (C) above Low freezing point High calorific value Ease of atomisation Both (A) and (C) above ANSWER DOWNLOAD EXAMIANS APP
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