Compressors, Gas Turbines and Jet Engines In jet engines, for the efficient production of large power, fuel is burnt in an atmosphere of Compressed air Oxygen alone Atmospheric air Vacuum Compressed air Oxygen alone Atmospheric air Vacuum ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The inter-cooler pressure, for minimum work required, for a two stage reciprocating air compressor, is given by (where p₁ = Intake pressure of air, p₂ = Inter-cooler pressure, and p₃ = Delivery pressure of air) p₂ = p₁ × p₃ p₂ = p₁/p₃ p₂ = p₁ × p₂ p₂ = p₃/p₁ p₂ = p₁ × p₃ p₂ = p₁/p₃ p₂ = p₁ × p₂ p₂ = p₃/p₁ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The mass of gas turbine per kW developed is about ________ as that of an I.C. engine. Same One sixth One fourth One-half Same One sixth One fourth One-half ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Axial flow compressor resembles Turbine Sliding vane compressor Reciprocating pump Centrifugal pump Turbine Sliding vane compressor Reciprocating pump Centrifugal pump ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Diffuser in a compressor is used to Convert pressure energy into kinetic energy Increase velocity Make the flow streamline Convert kinetic energy into pressure energy Convert pressure energy into kinetic energy Increase velocity Make the flow streamline Convert kinetic energy into pressure energy ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The overall isothermal efficiency of compressor is defined as the ratio of Isothermal h.p. to adiabatic h.p. Isothermal h.p. to the BHP of motor Work to compress air isothermally to work for actual compression Power to drive compressor to isothermal h.p. Isothermal h.p. to adiabatic h.p. Isothermal h.p. to the BHP of motor Work to compress air isothermally to work for actual compression Power to drive compressor to isothermal h.p. ANSWER DOWNLOAD EXAMIANS APP
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