Compressors, Gas Turbines and Jet Engines A rocket works with maximum overall efficiency when air craft velocity is equal to the Average of the jet velocity Jet velocity Twice the jet velocity Half the jet velocity Average of the jet velocity Jet velocity Twice the jet velocity Half the jet velocity ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The volumetric efficiency of compressor with increase in compression ratio will Decrease Increase Remain same May increase or decrease depending on clearance volume Decrease Increase Remain same May increase or decrease depending on clearance volume ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines During peak load periods, the best method of controlling compressors is Relief valve Constant speed unloader Start-stop motor Variable speed Relief valve Constant speed unloader Start-stop motor Variable speed ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines To avoid moisture troubles, the compressed air main line should Be laid vertically Rise gradually towards the point of use Drop gradually towards the point of use Be laid exactly horizontally Be laid vertically Rise gradually towards the point of use Drop gradually towards the point of use Be laid exactly horizontally ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The efficiency and work ratio of a gas turbine plant can be increased by All of these Injecting water in/around combustion chamber Adding heat exchanger Reheating the air after partial expansion in the turbine All of these Injecting water in/around combustion chamber Adding heat exchanger Reheating the air after partial expansion in the turbine ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The thermodynamic efficiency of rotary compressor is based on Adiabatic compression Isothermal compression Polytropic compression Isentropic compression Adiabatic compression Isothermal compression Polytropic compression Isentropic compression ANSWER DOWNLOAD EXAMIANS APP
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