Compressors, Gas Turbines and Jet Engines Rotary compressors are used for delivering Large quantities of air at low pressures Large quantities of air at high pressures Small quantities of air at low pressures Small quantities of air at high pressures Large quantities of air at low pressures Large quantities of air at high pressures Small quantities of air at low pressures Small quantities of air at high pressures 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 = p₃/p₁ p₂ = p₁/p₃ p₂ = p₁ × p₂ p₂ = p₁ × p₃ p₂ = p₃/p₁ p₂ = p₁/p₃ p₂ = p₁ × p₂ p₂ = p₁ × p₃ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In air breathing jet engine, the jet is formed by expanding Plasma Solids Liquid Highly heated atmospheric air Plasma Solids Liquid Highly heated atmospheric air ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Mining industry usually employs following motive power Petrol engine Compressed air C. electric motor Diesel engine Petrol engine Compressed air C. electric motor Diesel engine ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The overall isothermal efficiency of compressor is defined as the ratio of Power to drive compressor to isothermal h.p. Isothermal h.p. to adiabatic h.p. Work to compress air isothermally to work for actual compression Isothermal h.p. to the BHP of motor Power to drive compressor to isothermal h.p. Isothermal h.p. to adiabatic h.p. Work to compress air isothermally to work for actual compression Isothermal h.p. to the BHP of motor ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A turboprop is preferred to turbojet because It can fly at high elevations It has high propulsive efficiency at high speeds It has high power for take off It can fly at supersonic speeds It can fly at high elevations It has high propulsive efficiency at high speeds It has high power for take off It can fly at supersonic speeds ANSWER DOWNLOAD EXAMIANS APP
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