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20-Bio-A7 Bioinstrumentation: May 2015

Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)

  1. Question 1 Centrifugal pump — best efficiency point and similarity scaling
  2. Question 2 Multi-fluid manometer — gage pressure at A
  3. Question 3 Two reservoirs, two parallel laminar oil pipes
  4. Question 4 Parallel galvanized-iron pipe loop, dead pump as a fixed loss

Start with Question 1 →

Paper format. National Exams, May 2015 — 04-Bio-A7, 3 hours, open book (any non-communicating calculator permitted). Four questions constitute a complete exam paper, each of equal value, and all require calculation. All four are solved here.

Check — subject-identity note: every page of the paper is headed and footed “04-Bio-A7, Fluid Mechanics” and all four questions (centrifugal-pump performance and similarity scaling, a multi-fluid manometer, laminar pipe flow between two reservoirs, and a turbulent parallel-pipe network) are genuine Fluid Mechanics content, with no bioinstrumentation, signal-processing, or physiological material at all. This solution follows the paper's true subject and cites a fluid-mechanics reference accordingly.

Reference texts. White, Fluid Mechanics, 8th ed. (manometry, laminar Hagen–Poiseuille pipe flow, turbulent Darcy–Weisbach/Colebrook pipe networks, and centrifugal-pump performance & similarity — ch. 2, 6, 11).