Compressors, Gas Turbines and Jet Engines During base load operation, the best method of controlling compressor is Relief valve Variable speed Start-stop motor Constant speed unloader Relief valve Variable speed Start-stop motor Constant speed unloader ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The degree of reaction of an axial flow turbine is the ratio of isentropic temperature drop in a blade row to the Total temperature drop in the stage Total temperature drop Total adiabatic temperature drop Adiabatic temperature drop in the stage Total temperature drop in the stage Total temperature drop Total adiabatic temperature drop Adiabatic temperature drop in the stage ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Which one of the following is the effect of blade shape on performance of a centrifugal compressor? Forward curved blades produce lower pressure ratio Backward curved blades lead to stable performance Backward curved blades has poor efficiency Forward curved blades has higher efficiency Forward curved blades produce lower pressure ratio Backward curved blades lead to stable performance Backward curved blades has poor efficiency Forward curved blades has higher efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Only rocket engines can be propelled to space because They are not air breathing engines They have high propulsion efficiency These engines can work on several fuels They can generate very high thrust They are not air breathing engines They have high propulsion efficiency These engines can work on several fuels They can generate very high thrust ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Volumetric efficiency of air compressors is of the order of 60 - 70% 20 - 30% 70 - 90% 40 - 50% 60 - 70% 20 - 30% 70 - 90% 40 - 50% ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Gas turbine cycle with regenerator Decreases heat loss is exhaust Allows high compression ratio Allows operation at very high altitudes Increases thermal efficiency Decreases heat loss is exhaust Allows high compression ratio Allows operation at very high altitudes Increases thermal efficiency ANSWER DOWNLOAD EXAMIANS APP
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