Compressors, Gas Turbines and Jet Engines In a single stage, single acting reciprocating air compressor, without clearance volume, the work-done is minimum during Isothermal compression Polytropic compression None of these Isentropic compression Isothermal compression Polytropic compression None of these Isentropic 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 Reduced volume flow rate Lower delivery pressure Lower suction pressure Increased volume flow rate Reduced volume flow rate Lower delivery pressure Lower suction pressure 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 Same Less More/less depending on compressor capacity More Same Less More/less depending on compressor capacity More ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In jet propulsion power unit, the inlet duct of diverging shape is used in order to Convert kinetic energy of air into pressure energy Collect more air Beautify the shape Provide robust structure Convert kinetic energy of air into pressure energy Collect more air Beautify the shape Provide robust structure ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The specific output per kg mass flow rate of a gas turbine (having fixed efficiencies of compressor and turbine and fixed higher and lower temperature) with increase in pressure ratio will Increase first at fast rate and then slow Decrease continuously Increase first at slow rate and then fast First increase, reach maximum and then decrease Increase first at fast rate and then slow Decrease continuously Increase first at slow rate and then fast First increase, reach maximum and then decrease ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Efficiency of gas turbine is increased by All of the listed here Reheating Adding a regenerator Inter cooling All of the listed here Reheating Adding a regenerator Inter cooling ANSWER DOWNLOAD EXAMIANS APP
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