The GATE Grind

GATE Control Systems: Feedback and transfer functions – Previous Year Questions

3 GATE previous year questions on Feedback and transfer functions (Control Systems, Instrumentation Engineering) with answers and explanations, from every paper.

  1. GATE 2022 IN Q37 (2 marks, Multiple choice) – The signal-flow graph is shown. The expression for Y(s)/X(s) is .
  2. GATE 2025 IN Q27 (1 mark, Multiple choice) – For G(s)=1+2s-1s3+5s2+3s+22, the number of zeros in the left half of the s-plane is
  3. GATE 2025 IN Q59 (2 marks, MTA) – The shown feedback control system has disturbance input d(t) and output y(t). The maximum allowable integer n such that any step disturbance produces…