Compressors, Gas Turbines and Jet Engines A compressor at high altitude will draw More/less power depending on other factors Same power More power Less power More/less power depending on other factors Same power More power Less power ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For perfect intercooling in a three stage compressor p₃/p₁ = p₄/p₂ p₂/p₁ = p₃/p₂ = p₄/p₃ p₁ p₂ = p₃ p₄ p₁ p₃ = p₂ p₄ p₃/p₁ = p₄/p₂ p₂/p₁ = p₃/p₂ = p₄/p₃ p₁ p₂ = p₃ p₄ p₁ p₃ = p₂ p₄ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of isentropic work to Euler’s work is known as Pressure coefficient Compressor efficiency Isentropic efficiency Euler Pressure coefficient Compressor efficiency Isentropic efficiency Euler ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The work done per unit mass of air in compression will be least when 'n' is equal to 1 1.4 1.3 1.2 1 1.4 1.3 1.2 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines If V, U and Vr represent the absolute velocity of fluid, velocity of blade, and relative velocity of fluid, and suffix ‘I’ and ‘o’ stand for entry and exit conditions, then in a rotary machine whose degree of reaction is unity Vt > Vo V = Uo Vi = Vo U < Vo Vt > Vo V = Uo Vi = Vo U < Vo ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The advantage of multistage compression over single stage compression is Decreased discharge temperature Higher volumetric efficiency All of these Lower power consumption per unit of air delivered Decreased discharge temperature Higher volumetric efficiency All of these Lower power consumption per unit of air delivered ANSWER DOWNLOAD EXAMIANS APP
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