Compressors, Gas Turbines and Jet Engines

A. 20-30%
B. 40-50%
C. 60-70%
D. 70-90%
E. 90-100%

A. as large as possible
B. as small as possible
C. about 50% of swept volume
D. about 100% of swept volume
E. none of the above

A. mechanical efficiency
B. volumetric efficiency
C. isothermal efficiency
D. adiabatic efficiency
E. relative efficiency

A. radial flow
B. axial flow
C. centrifugal
D. combination of above
E. none of the above

A. ideal compression
B. adiabatic compression
C. botii isothermal and adiabatic compression
D. isentropic compression
E. isothermal compression

A. one adiabatic, two isobaric, and one constant volume
B. two adiabatic and two isobaric
C. two adiabatic, one isobaric and one constant volume,
D. one adiabatic, one isobaric and two constant volume
E. two isobaric, two adiabatic and one constant volume

A. 1
B. 1.2 ,
C. 1.3
D. 1.4
E. 1.5

A. one adiabatic, two isobaric, and one constant volume
B. two adiabatic and two isobaric
C. two adiabatic, one isobaric and one constant volume
D. one adiabatic, one isobaric and two constant volume
E. two isobaric, two adiabatic and one constant volume

A. 3 m3/mt
B. 1.5 m3/mt
C. 18 m3/mt
D. 6 m3/mt
E. 0.75 m3/mt

A. ityrequires very big cylinder
B. it does not increase pressure much
C. it is impossible in practice
D. compressor has to run at very slow speed to achieve it
E. it requires cylinder to be placed in water