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 Volumetric efficiency of air compressors is of the order of 40 - 50% 70 - 90% 60 - 70% 20 - 30% 40 - 50% 70 - 90% 60 - 70% 20 - 30% ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of the discharge pressure to the inlet pressure of air is called Compression ratio Volumetric efficiency Compressor efficiency Expansion ratio Compression ratio Volumetric efficiency Compressor efficiency Expansion ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a single stage, single acting reciprocating air compressor without clearance volume, the work-done is maximum during Isothermal compression Polytropic compression Isentropic compression None of these Isothermal compression Polytropic compression Isentropic compression None of these ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of the net work obtained from the gas turbine plant to the turbine work is known as Pressure ratio Work ratio Compression ratio None of these Pressure ratio Work ratio Compression ratio None of these ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Pick up the correct statement Gas turbines have their blades similar to steam turbine Large gas turbines use radial inflow turbines Gas turbines use both air and liquid cooling Gas turbine's blade will appear as impulse section at the hub and as a reaction section at tip Gas turbines have their blades similar to steam turbine Large gas turbines use radial inflow turbines Gas turbines use both air and liquid cooling Gas turbine's blade will appear as impulse section at the hub and as a reaction section at tip ANSWER DOWNLOAD EXAMIANS APP
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