Compressors, Gas Turbines and Jet Engines During base load operation, the best method of controlling compressor is Constant speed unloader Relief valve Start-stop motor Variable speed Constant speed unloader Relief valve Start-stop motor Variable speed ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Which of the following statement is correct as regard to centrifugal compressors? The impeller rotates at high speeds The maximum efficiency is higher than multistage axial flow compressors The static pressure of air in the impeller increases in order to provide centripetal force on the air The flow of air is parallel to the axis of the compressor The impeller rotates at high speeds The maximum efficiency is higher than multistage axial flow compressors The static pressure of air in the impeller increases in order to provide centripetal force on the air The flow of air is parallel to the axis of the compressor ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The pressure ratio for an open cycle gas turbine compared to closed cycle gas turbine of same h.p. is Low/high depending on make and type Low Same High Low/high depending on make and type Low Same High ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The overall efficiency of the compressed air system is the Ratio of shaft input to the compressor to the shaft output of air motor Ratio of shaft output of the air motor to the shaft input to the compressor None of these Product of shaft output of air motor and shaft input to the compressor Ratio of shaft input to the compressor to the shaft output of air motor Ratio of shaft output of the air motor to the shaft input to the compressor None of these Product of shaft output of air motor and shaft input to the compressor ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Rotary compressors are suitable for Low discharge at high pressure Large discharge at low pressure Low discharge at low pressure Large discharge at high pressure Low discharge at high pressure Large discharge at low pressure Low discharge at low pressure Large discharge at high pressure ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Actual compression curve is Same as isothermal Better than isothermal and adiabatic Same as adiabatic In between isothermal and adiabatic Same as isothermal Better than isothermal and adiabatic Same as adiabatic In between isothermal and adiabatic ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS