Compressors, Gas Turbines and Jet Engines

A. mass
B. energy
C. flow
D. linear momentum
E. angular momentum

A. reduction of speed of incoming air and conversion of part of it into pressure energy
B. compression of inlet air
C. increasing speed of incoming air
D. lost work
E. leakage losses

A. less
B. more
C. same
D. may be less or more depending on ambient conditons
E. unpredictable

A. increase in net output but decrease in thermal efficiency
B. increase in thermal efficiency but decrease in net output
C. increase in both thermal efficiency and net output
D. decrease in both thermal efficiency and net output
E. none of the above

A. isothermal
B. isentropic
C. adiabatic
D. isochoric
E. isobaric

A. high calorific value
B. ease of atomisation
C. low freezing point
D. A. and C. above
E. none of the above

A. peopeller
B. diffuser
C. intercooler
D. turbine and combustion chamber
E. starting engine

A. vacuum
B. atmospheric air
C. compressed air
D. oxygen alone
E. liquid hydrogen

A. closed cycle
B. open cycle
C. both of the above
D. closed/open depending on other con-siderations
E. unpredictable

A. high pressure ratio
B. increasing gas temperature
C. high specific volume
D. high friction losses
E. paucity of 02