Compressors, Gas Turbines and Jet Engines The criterion of the thermodynamic efficiency for rotary compressor is Isentropic compression Isothermal compression None of the listed here Polytropic compression Isentropic compression Isothermal compression None of the listed here Polytropic compression ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A large clearance volume in a reciprocating compressor results in Increased volume flow rate Lower delivery pressure Lower suction pressure Reduced volume flow rate Increased volume flow rate Lower delivery pressure Lower suction pressure Reduced volume flow rate ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The overall thermal efficiency of an ideal gas turbine plant is (where r = Pressure ratio) 1 - (1/r) ɣ-1/ɣ 1 - (1/r) ɣ/ɣ-1 1 - r ɣ-1 r ɣ-1 1 - (1/r) ɣ-1/ɣ 1 - (1/r) ɣ/ɣ-1 1 - r ɣ-1 r ɣ-1 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Maximum temperature in a gas turbine is of the order of 2000°C 700°C 1000°C 1500°C 2000°C 700°C 1000°C 1500°C ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The process, which causes the air to enter the impeller blades of a centrifugal compressor at ________ velocity (without effecting the mass of air to flow and velocity of flow) is known as prewhirl. Increased Zero Reduced None of these Increased Zero Reduced None of these ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The closed cycle in gas turbines Is used when gas is to be burnt In never used Provides greater flexibility Provides lesser flexibility Is used when gas is to be burnt In never used Provides greater flexibility Provides lesser flexibility ANSWER DOWNLOAD EXAMIANS APP
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