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22-Mec-A3 System Analysis and Control: December 2016

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

  1. Question 1 Impulse Response of a Repeated-Pole and of an Underdamped System
  2. Question 2 Steady-State Level of a Proportional Liquid-Level Loop
  3. Question 3 Bode Diagrams — a Lag Network and a Three-Pole Loop
  4. Question 4 Root-Locus Design for a Damping Ratio of 0.5
  5. Question 5 Routh–Hurwitz Stability, Step Response and Gain Tolerance
  6. Question 6 Error Constants and Steady-State Errors

Start with Question 1 →

Paper format. 07-Mec-A3 System Analysis and Control, National Exams December 2016 — 3 hours, closed book (Casio or Sharp approved calculator; semi-log graph paper is the only permitted aid). The rubric states that any four (4) questions constitute a complete paper and that all questions are of equal value, so each question is worth 25 marks of the 100 marked. All six questions are solved in full.

Reference texts. K. Ogata, Modern Control Engineering, 5th ed. (Pearson) — Ch. 3–7; N. S. Nise, Control Systems Engineering, 8th ed. (Wiley) — Ch. 4, 6, 8, 10; R. C. Dorf and R. H. Bishop, Modern Control Systems, 13th ed. (Pearson) — Ch. 5–8; G. F. Franklin, J. D. Powell and A. Emami-Naeini, Feedback Control of Dynamic Systems, 8th ed. (Pearson) — Ch. 3–6. A table of Laplace transform pairs is appended to the examination paper (page 5 of the original).