Turbo Machines Multiple Choice Questions & Answers Pdf - 1
Question: 1
An ideal fluid for vapour turbine cycle should have
(A) low critical temperature with low pressure
(B) low critical temperature with high pressure
(C) high critical temperature with high pressure
(D) high critical temperature with low pressure
Ans: D
high critical temperature with low pressure
Question: 2
As there is plenty of time for heat transfer across the walls, the flow in long pipes at low velocities attains
(A) polytropic conditions
(B) isothermal conditions
(C) adiabatic conditions
(D) isentropic conditions
Ans: B
isothermal conditions
Question: 3
Greater the difference between jet velocity and aeroplane velocity
(A) lesser, the propulsive efficiency
(B) unaffected is the propulsive efficiency
(C) greater the propulsive efficiency
(D) none of the above
Ans: A
lesser, the propulsive efficiency
Question: 4
De Laval turbine is used for applications requiring
(A) low power, high speed
(B) low power, low speed
(C) high power, high speed
(D) high power, low speed
Ans: A
low power, high speed
Question: 5
Maximum delivery pressure in case of rotary compressors is usually restricted to
(A) 2 atmosphere
(B) 5 atmosphere
(C) 8 atmosphere
(D) 10 atmosphere
Ans: D
10 atmosphere
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