Compressors, Gas Turbines and Jet Engines
The following is true for an open cycle gas turbine having exhaust heat exchanger. Atmospheric air before entering the compressor is

Heated
Compressed air before entering the combustion chamber is heated
Exhaust gases drive the compressor
Bled gas from turbine is heated and readmitted for complete expansion

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
Product of shaft output of air motor and shaft input to the compressor
None of these
Ratio of shaft output of the air motor to the shaft input to the compressor

ANSWER DOWNLOAD EXAMIANS APP