Compressors, Gas Turbines and Jet Engines The air entry velocity m a rocket as compared to aircraft is Less Zero More Same Less Zero More Same ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The assumption made in two stage compression with inter-cooler is that The compression in both the cylinders is polytropic There is no pressure drop in the inter-cooler All of the listed here The suction and delivery of air takes place at constant pressure The compression in both the cylinders is polytropic There is no pressure drop in the inter-cooler All of the listed here The suction and delivery of air takes place at constant pressure ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Pick up wrong statement. Surging phenomenon in centrifugal compressor depends on Pressure ratio Stagnation pressure at the outlet Change in load Mass flow rate Pressure ratio Stagnation pressure at the outlet Change in load Mass flow rate ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A turboprop is preferred to turbojet because It has high power for take off It can fly at high elevations It can fly at supersonic speeds It has high propulsive efficiency at high speeds It has high power for take off It can fly at high elevations It can fly at supersonic speeds It has high propulsive efficiency at high speeds ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Which of the following statement is correct as regard to centrifugal compressors? The maximum efficiency is higher than multistage axial flow compressors The static pressure of air in the impeller increases in order to provide centripetal force on the air The impeller rotates at high speeds The flow of air is parallel to the axis of the compressor The maximum efficiency is higher than multistage axial flow compressors The static pressure of air in the impeller increases in order to provide centripetal force on the air The impeller rotates at high speeds The flow of air is parallel to the axis of the compressor 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 = p₃/p₁ p₂ = p₁ × p₂ p₂ = p₁ × p₃ p₂ = p₁/p₃ p₂ = p₃/p₁ p₂ = p₁ × p₂ p₂ = p₁ × p₃ ANSWER DOWNLOAD EXAMIANS APP
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