The GATE Grind

GATE Control Systems: State space model, Solution of state equations of LTI systems – Previous Year Questions

9 GATE previous year questions on State space model, Solution of state equations of LTI systems (Control Systems, Electrical Engineering) with answers and explanations, from every paper.

  1. GATE 2017 EE Q43 (2 marks, Multiple choice) – The transfer function of the system Y(s)/U(s) whose state-space equations are given below is: bmatrixx 1(t) \\ x 2(t)bmatrix = bmatrix 1 & 2 \\ 2 & 0…
  2. GATE 2015 EE Q62 (2 marks, Multiple choice) – In the signal flow diagram given in the figure, u 1 and u 2 are possible inputs whereas y 1 and y 2 are possible outputs. When would the SISO system…
  3. GATE 2016 EE Q41 (2 marks, Numerical answer) – Consider the following state-space representation of a linear time-invariant system. x(t) = bmatrix 1 & 0 \\ 0 & 2 bmatrix x(t), y(t) = cT x(t), c =…
  4. GATE 2019 EE Q41 (2 marks, Multiple choice) – Consider a state-variable model of a system bmatrix x 1\\ x 2bmatrix=bmatrix0&1\\-&-2bmatrixbmatrixx 1\ 2bmatrix+bmatrix0\\bmatrixr, y=[1\ \…
  5. GATE 2021 EE Q59 (2 marks, Numerical answer) – The state space representation of a first-order system is given as x=-x+u y=x where, x is the state variable, u is the control input and y is the…
  6. GATE 2023 EE Q46 (2 marks, Numerical answer) – Consider the state-space description of an LTI system with matrices A=bmatrix0&1\\-1&-2bmatrix,\ B=bmatrix0\\1bmatrix,\ C=[3\ \ -2],\ D=1. For the…
  7. GATE 2025 EE Q62 (2 marks, Numerical answer) – Consider the state-space model x(t)=A x(t)+Br(t), y(t)=C x(t) where x(t), r(t), y(t) are the state, input and output, respectively. The matrices A,B,C…
  8. GATE 2026 EE Q52 (2 marks, Multiple choice) – A system is characterized by the following state equation and output equation (u: input, x: state vector, y: output) x=bmatrixa&b\\-a&0bmatrix…
  9. GATE 2026 EE Q53 (2 marks, Multiple choice) – A system is represented in state-space form as follows: (u: input, x: state vector, y: output) x=bmatrix1&2\\-3&0bmatrix x+bmatrix1\\2bmatrixu,…