Example: (A) a unit-step change in error is introduced into a pid controller, if Ke=10 , Tr=1 and TD=0.5 plot the response of the controller P(t). (B) if the error changed with a ratio of 0.5 in/min plot the response of p(t). Solution:

7. Describe how the thermocouple senses temperature. What does the thermocouple output to the PID controller (i.e., Resistance)? ->

1. In perfect regulation control system the control effort at transient response must has: (a.) Zero value b. Minimum value c. Maximum value d. Any value 2. In LQR controller technique, the transient response of the system output can be decreased by a. Reducing diagonal elements of R matrix Reducing diagonal elements of Q matrix c. ncreasing diagonal elements of R matrix d. Increasing diagonal elements of Q matrix 0 1-2 b. under damped. 3. A plant with a state a. critical damped. 4. In tracking control system a. The initial and steady state values of state vector are zero b. The desired values of the state vector are non zero The inital values of state vector are non zero and desired values are zero. d. The inital and desired values of the state vector are zero 5. In LQR controller technique increasing value of the element 921 in Q matrix can_ a. Increase rise time b. Decreae rise time matrix A= is c. over damped. c. Increase settling time d. Decrease settling time None of all above 6.…