Category: Compressors, Gas Turbines and Jet Engines

A. centrifugal
B. reciprocating
C. axial
D. screw
E. turbo jet

A. isothermal compression
B. adiabatic compression
C. isentropic compression
D. polytropic compression
E. none of the above

A. compressor work and turbine work
B. output and input
C. actual total head tempeature drop to the isentrpic total head drop from total head inlet to static head outlet
D. actual compressor work and theoretical comprssor work
E. none of the above

A. centrifugal compressors deliver prac-tically constant pressure over a considerable range of capacities
B. Axial flow compressors have a sub-stantially constant delivery at variable pressures
C. centrifugal compressors have a wider stable operating range than axial flow compressors
D. axial flow compressors are bigger in diameter compared to centrifugal type
E. axial flow compressors apt to be longer as compared to centrifugal type

A. is self-operating at zero flight speed
B. is not self-operating at zero^flight speed
C. requires no air for its operation
D. produces a jet consisting of plasma
E. none of the above

A. carries its own oxygen
B. uses surrounding air
C. uses compressed atmospheric air
D. does not require oxygen
E. depends on electrical energy supplied by solar cells

A. pressure ratio
B. pressure coefficient
C. degree of reaction
D. slip factor
E. stage factor

A. one air stream
B. two or more air streams
C. no air stream
D. solid fuel firing
E. rocket principle for its operation

A. gases
B. solids
C. liquid
D. plasma
E. highly heated atmospheric air