Paper: 07-Mec-A6 Fluid Machinery — National Examinations, May 2015. Closed book, three hours. Section A (calculative, Q1–Q5) and Section B (descriptive, Q6–Q8); candidates answer four of A and two of B, but all eight are solved here as a study resource. Each question 10 marks.
Reference texts: S.L. Dixon & C.A. Hall, Fluid Mechanics and Thermodynamics of Turbomachinery, 7th ed.; R.K. Turton, Principles of Turbomachinery, 2nd ed.; H. Cohen, G.F.C. Rogers & H.I.H. Saravanamuttoo, Gas Turbine Theory, 6th ed.; R.W. Fox, A.T. McDonald & P.J. Pritchard, Introduction to Fluid Mechanics, 8th ed.
Q1 (with Parts I and II interchanged), Q2 (Vanderkloof), Q4 (Curtis) and Q5 (Acacia/Port Rex) carry the same data; only Q3 (multi-jet Pelton) is unique. Q1 Part II additionally instructs the candidate to select a turbine efficiency, which is applied here.
