Compressors, Gas Turbines and Jet Engines In a single stage, single acting reciprocating air compressor without clearance volume, the work-done is maximum during None of these Polytropic compression Isothermal compression Isentropic compression None of these Polytropic compression Isothermal compression Isentropic compression ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Propulsive efficiency is defined as ratio of Thrust power and fuel energy Propulsive power and fuel input Engine output and propulsive power Thrust power and propulsive power Thrust power and fuel energy Propulsive power and fuel input Engine output and propulsive power Thrust power and propulsive power ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Maximum delivery pressure is a rotary air compressor is of the order of 6 kg/cm² 10 kg/cm² 25 kg/cm² 16 kg/cm² 6 kg/cm² 10 kg/cm² 25 kg/cm² 16 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A rotary compressor is driven by an Electric motor Engine None of these Either (A) or (B) Electric motor Engine None of these Either (A) or (B) ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The efficiency of roots blower ________ with the increase in pressure ratio. Does not change None of these Decreases Increases Does not change None of these Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Phenomenon of choking in compressor means Increased inclination of chord with air steam No flow of air Reducing mass flow rate with increase in pressure ratio Fixed mass flow rate regardless of pressure ratio Increased inclination of chord with air steam No flow of air Reducing mass flow rate with increase in pressure ratio Fixed mass flow rate regardless of pressure ratio ANSWER DOWNLOAD EXAMIANS APP
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