NivaarExam PrepOfficial exam papers ↗

22-Mec-A1 Applied Thermodynamics and Heat Transfer: Undated paper

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

  1. Question 1 Work and internal-energy change of a gas with a P–V equation of state
  2. Question 2 Throttling of saturated liquid ammonia
  3. Question 3 Two-stage steam turbine with reheat
  4. Question 4 R-134a vapour-compression refrigeration cycle
  5. Question 5 Self-cleaning oven composite window
  6. Question 6 Ice-storage cooling tank
  7. Question 7 Power-amplifier case temperature (free convection + radiation)
  8. Question 8 Shel​l-and-tube heat exchanger sizing

Start with Question 1 →

Paper format: National Examination 16-Mec-A1 Applied Thermodynamics and Heat Transfer — 3 hours, open book. Two parts: Part A (Thermodynamics, Q1–Q4) and Part B (Heat Transfer, Q5–Q8). The rubric asks for five questions (three from one part, two from the other), each of equal value; all eight are solved.

Reference texts: Çengel & Boles, Thermodynamics: An Engineering Approach (9th ed.); Çengel & Ghajar, Heat and Mass Transfer (6th ed.); Incropera & DeWitt, Fundamentals of Heat and Mass Transfer (8th ed.); Moran & Shapiro, Fundamentals of Engineering Thermodynamics. Property data: saturated ammonia and R-134a tables printed with the paper.