Compressors, Gas Turbines and Jet Engines The combustion efficiency of a gas turbine using perfect combustion chamber is of the order of 0.9 0.85 0.75 0.99 0.9 0.85 0.75 0.99 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Volumetric efficiency of a compressor decreases with ________ in compression ratio. Does not change Remain same Decrease Increase Does not change Remain same Decrease Increase ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Isothermal compression efficiency, even when running at high speed, can be approached by using Multistage compression Cold water spray Fully insulating the cylinder Both (A) and (B) above Multistage compression Cold water spray Fully insulating the cylinder Both (A) and (B) above ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Water is injected in gas turbine cycle to Control fire hazards Increase efficiency Control temperature Control output of turbine Control fire hazards Increase efficiency Control temperature Control output of turbine ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of isentropic work to Euler work is known as Polytropic reaction Slip factor Work coefficient Pressure coefficient Polytropic reaction Slip factor Work coefficient Pressure coefficient ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The stagnation pressure rise in a centrifugal compressor takes place In the impeller only In the inlet guide vanes only In the diffuser and impeller In the diffuser only In the impeller only In the inlet guide vanes only In the diffuser and impeller In the diffuser only ANSWER DOWNLOAD EXAMIANS APP
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