NivaarExam PrepOfficial exam papers ↗

22-Agric-A3 Heat Engineering: December 2017

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

  1. Question 1 Steady Conduction Through a Lead Slab
  2. Question 2 Specific-Heat and Calorimetry Calculations
  3. Question 3 Radiation Shielding of a Liquid-Nitrogen Line
  4. Question 4 Radiation Exchange Between Two Black Disks

Start with Question 1 →

Paper format. 04-Agric-A3 Heat Engineering, National Exams December 2017 — a three-hour open-book examination; any non-communicating calculator is permitted. The cover page states that four (4) questions constitute a complete exam paper and that only the first four as they appear in the answer book are marked, that each question is of equal value, and that all questions require calculation. All four printed problems are worked here.

Reference texts. Y.A. Çengel & A.J. Ghajar, Heat and Mass Transfer: Fundamentals and Applications, 5th ed. (specific heat, calorimetry, conduction); J.P. Holman, Heat Transfer, 10th ed. (radiation shape factors, radiation networks with reradiating surfaces); R.F. Barron, Cryogenic Heat Transfer, 2nd ed. (radiation shields for cryogenic lines); F.P. Incropera & D.P. DeWitt, Fundamentals of Heat and Mass Transfer, 7th ed. (coaxial-disk view-factor relation).