Compressors, Gas Turbines and Jet Engines Volumetric efficiency of a compressor decreases with ________ in compression ratio. Decrease Remain same Does not change Increase Decrease Remain same Does not change Increase ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a centrifugal compressor, the ratio of the ________ to the blade velocity is called slip factor. Inlet velocity of flow Outlet whirl velocity Inlet whirl velocity Outlet velocity of flow Inlet velocity of flow Outlet whirl velocity Inlet whirl velocity Outlet velocity of flow ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of isentropic work to Euler’s work is known as Isentropic efficiency Compressor efficiency Euler Pressure coefficient Isentropic efficiency Compressor efficiency Euler Pressure coefficient ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For perfect intercooling in a two stage compressor p₁/p₃ = p₂/p₁ p₂/p₁ = p₃/p₂ p₁ = p₂ p3 p₁ = p3 p₁/p₃ = p₂/p₁ p₂/p₁ = p₃/p₂ p₁ = p₂ p3 p₁ = p3 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The following is true for an open cycle gas turbine having exhaust heat exchanger. Atmospheric air before entering the compressor is Bled gas from turbine is heated and readmitted for complete expansion Compressed air before entering the combustion chamber is heated Heated Exhaust gases drive the compressor Bled gas from turbine is heated and readmitted for complete expansion Compressed air before entering the combustion chamber is heated Heated Exhaust gases drive the compressor ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Compression efficiency is compared against Adiabatic compression Isentropic compression Ideal compression Isothermal compression Adiabatic compression Isentropic compression Ideal compression Isothermal compression ANSWER DOWNLOAD EXAMIANS APP
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