Compressors, Gas Turbines and Jet Engines Only rocket engines can be propelled to space because They are not air breathing engines They can generate very high thrust They have high propulsion efficiency These engines can work on several fuels They are not air breathing engines They can generate very high thrust They have high propulsion efficiency These engines can work on several fuels ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The criterion of the thermodynamic efficiency for rotary compressor is Polytropic compression Isentropic compression Isothermal compression None of the listed here Polytropic compression Isentropic compression Isothermal compression None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The material commonly used for air craft gas turbine is Stainless steel Timken, Haste alloys High alloy steel Duralumin Stainless steel Timken, Haste alloys High alloy steel Duralumin 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 More/less depending on compressor capacity Same Less More More/less depending on compressor capacity Same Less More ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For a two stage reciprocating compressor, compression from p₁ to p₃ is with perfect intercooling and no pressure losses. If compression in both the cylinders follows the same polytropic process and the atmospheric pressure is pa, then the intermediate pressure p₂ is given by P₂ = Pa × p₃/p₁ p₂ = Pa p₃/p₁ p₂ = p₁. p₃ p₂ = (p₁ + p₃)/2 P₂ = Pa × p₃/p₁ p₂ = Pa p₃/p₁ p₂ = p₁. p₃ p₂ = (p₁ + p₃)/2 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A large clearance volume in a reciprocating compressor results in Reduced volume flow rate Lower delivery pressure Lower suction pressure Increased volume flow rate Reduced volume flow rate Lower delivery pressure Lower suction pressure Increased volume flow rate ANSWER DOWNLOAD EXAMIANS APP
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