1000+ Turbomachinery Interview Questions and Answers - 2
Question: 6
The diverging portion of the nozzle acts as a diffuser for
(A) both the subsonic as well as supersonic flow
(B) the subsonic flow
(C) the supersonic flow
(D) none of the above
Ans: B
the subsonic flow
Question: 7
In a gas turbine cycle, regenerator is used to
(A) heat exhaust gases released from low pressure turbine
(B) heat air supplied to combustion chamber
(C) heat fuel supplied to combustion chamber
(D) heat the gases coming out of combustion chamber
Ans: B
heat air supplied to combustion chamber
Question: 8
The normal shock wave in compressible flow in analogous to
(A) hydraulic jump in channel flow
(B) hydraulic bore in tidal rivers
(C) surges in open channel
(D) vortex formation in centrifugal pump
Ans: A
hydraulic jump in channel flow
Question: 9
In a two stage gas turbine plant, reheating after first stage
(A) does not affect thermal efficiency
(B) increases thermal efficiency
(C) decreases thermal efficiency
(D) none of the above
Ans: C
decreases thermal efficiency
Question: 10
The flow of two sides of a normal shock wave is
(A) sonic
(B) supersonic
(C) supersonic on one side and subsonic on the other side
(D) subsonic
Ans: C
supersonic on one side and subsonic on the other side
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