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In the area – Mach relation A < A^* or A ≥ A^*.(a) True(b) FalseThe question was posed to me in a national level competition.The doubt is from Nozzles in chapter Quasi-One-Dimensional Flow of Aerodynamics

Answer»

The correct answer is (b) False

Explanation: In case of AREA – Mach relation, the value of A can never be less than A^* for an isentropic flow because this corresponds to the throat area where Mach number is EQUAL to 1 and has a local minimum area because dA = 0.



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