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22-Mec-A5 Electrical and Electronics Engineering: December 2017

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

  1. Question 1 Transistor Amplifier — Bias Design and Load Lines
  2. Question 2 Exclusive-OR Synthesis and Analysis of a Gated Logic Array
  3. Question 3 Homopolar Disc Machine — EMF, Torque and Output Power
  4. Question 4 Transformer Magnetic Circuit and Maximum Power Transfer
  5. Question 5 Op-Amp Frequency Response — Bode Sketch and Regional Behaviour
  6. Question 6 Induction Machines — Slip Relations and the Motor–Load Operating Point
  7. Question 7 First-Order RC Transient — Capacitor Voltage and Current
  8. Question 8 Parallel AC Network — Branch Currents, Power and Power-Factor Correction

Start with Question 1 →

Paper format. PEO / Engineers Canada National Examinations, December 2017 — 16-Mec-A5, Electrical & Electronics Engineering (Mechanical Engineering discipline). Three hours, closed book, one approved Casio or Sharp calculator. Eight questions; any five constitute a complete paper and each question is of equal value, so each counted question carries 20 marks. All eight questions are solved below, because this set is a study resource rather than an exam script. The front page prints the constants $\pi = 3.14159$, $1\text{ hp} = 746\text{ W}$ and $\mu_0 = 4\pi\times10^{-7}\text{ H m}^{-1}$; all three are used exactly as given (this sitting prints $\mu_0$ with the correct negative exponent).

Reference texts. A. S. Sedra and K. C. Smith, Microelectronic Circuits, 8th ed. (BJT biasing and load lines, op-amp frequency response); M. M. Mano and M. D. Ciletti, Digital Design, 6th ed. (universal-gate synthesis, DeMorgan reduction); S. J. Chapman, Electric Machinery Fundamentals, 5th ed. (dc machines, transformer magnetic circuits, induction-motor testing and slip); C. K. Alexander and M. N. O. Sadiku, Fundamentals of Electric Circuits, 7th ed. (phasor analysis, power factor, first-order transients); W. H. Hayt and J. A. Buck, Engineering Electromagnetics, 9th ed. (magnetic circuits and induced emf).

the gated-logic array, the transformer magnetic circuit, the op-amp band-pass Bode question, the RC transient and the parallel ac network as printed in December 2014; and the induction-motor slip / speed-torque question as printed in December 2016. The full working is transcribed in place below rather than cross-referenced, so this paper stands on its own as a study document.