Compressors, Gas Turbines and Jet Engines Mechanical efficiency of gas turbines as compared to I.C engines is Same None of these Lower Higher Same None of these Lower Higher ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Maximum temperature in a gas turbine is of the order of 700°C 2000°C 1500°C 1000°C 700°C 2000°C 1500°C 1000°C 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 First increase, reach maximum and then decrease Decrease continuously Increase first at slow rate and then fast Increase first at fast rate and then slow First increase, reach maximum and then decrease Decrease continuously Increase first at slow rate and then fast Increase first at fast rate and then slow ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For an irreversible gas turbine cycle, the efficiency and work ratio both depend on Maximum cycle temperature alone Pressure ratio alone Both pressure ratio and maximum cycle temperature Minimum cycle temperature alone Maximum cycle temperature alone Pressure ratio alone Both pressure ratio and maximum cycle temperature Minimum cycle temperature alone ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Surging is the phenomenon of Air stream not able to follow the blade contour Air stream blocking the passage Motion of air at sonic velocity Unsteady, periodic and reversed flow Air stream not able to follow the blade contour Air stream blocking the passage Motion of air at sonic velocity Unsteady, periodic and reversed flow ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The volumetric efficiency of a compressor Increases with decrease in compression ratio Decreases with increase in compression ratio Increases with increase in compression ratio Decreases with decrease in compression ratio Increases with decrease in compression ratio Decreases with increase in compression ratio Increases with increase in compression ratio Decreases with decrease in compression ratio ANSWER DOWNLOAD EXAMIANS APP
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