A. atmosphere
B. back to the compressor
C. discharge nozzle
D. vacuum
E. none of the above
A. Vi=V0B
B. Vt>V0
C. U,<V0
D. V,= U0
E. Vri=Vm
A. in two phases
B. in three phases
C. in a single phase
D. in the form of air and water mixture
E. gas and no air
The working fluid in ai turbine is___________________? Read More »
Compressors, Gas Turbines and Jet Engines A. 3.5 : 1
B. 5 : 1
C. 8 : 1
D. 12 : 1
E. 20 : 1
The compression ratio in a gas turbine is of the roder of____________________? Read More »
Compressors, Gas Turbines and Jet Engines 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
Ram-jet engine__________________? Read More »
Compressors, Gas Turbines and Jet Engines A. a propeller system
B. gas-turbine engine equipped with a propulsive nozzle and diffuse*
C. chemical rocket regine
D. ram-jet enigne
E. none of the above
A simple turbo-jet engine is basically_________________? Read More »
Compressors, Gas Turbines and Jet Engines A. less
B. more
C. same
D. may be less or more depening upon speed
E. none of the above
A. compressor pressure ratio
B. highest pressure to exhaust pressure
C. inlet pressure to exhaust pressure
D. pressures across the turbine
E. none of the above
Pressure ratio in gas turbines is the ratio of ____________________? Read More »
Compressors, Gas Turbines and Jet Engines A. steam power plant
B. petrol engine
C. diesel engine’
D. solar plant
E. gas turbine plant
A. one air stream
B. two or more air streams
C. no air stream
D. solid fuel firing
E. rocket principle for its operation
Turbofan engine employs ____________________ ? Read More »
Compressors, Gas Turbines and Jet Engines