Observer Systems
Observer Systems 1. A control system in which the control action is somehow dependent on the output is known as a) Closed loop system b) Semi closed loop system c)…
Pole Placement by State Feedback
Pole Placement by State Feedback 1. ______________ is not a final control element. a) Control valve b) Potentiometer c) Electro-pneumatic converter d) Servomotor Answer: b Explanation: Control element refers to…
Controllability & Observability
Controllability & Observability 1. A system is said to be_____________ if it is possible to transfer the system state from any initial state to any desired state in finite interval…
Solution of State Equations
Solution of State Equations 1. Which of the following is an electromechanical device ? a) Induction relay b) Thermocouple c) LVDT d) Any of the mentioned Answer: c Explanation: LVDT…
Diagonalization
Diagonalization 1. State models presented employed: a) Physical variables b) Phase variables c) Canonical variables d) All of the mentioned Answer: d Explanation: State models are used in the state…
State Variables & Linear Discrete Time Systems
State Variables & Linear Discrete Time Systems 1. Which of the following can be used as a tacho generator in control systems? a) Microsyn b) DC servomotor c) AC servomotor…
State Models for Linear Continuous Time Systems
State Models for Linear Continuous Time Systems 1. Consider the following servomotors: 1. AC-two phase servomotor 2. DC servomotor 3. Hydraulic servomotor 4. Pneumatic servomotor The correct sequence of these…
Concepts of State, State Variables & State Model
Concepts of State, State Variables & State Model 1. The transfer function for the state representation of the continuous time LTI system: dq(t)/dt=Aq(t)+Bx(t)Â Y(t)=Cq(t)+Dx(t) is given by: a) C(sI-A)-1B+D b) B(sI-A)-1B+D…
Compensation Techniques : Control Systems
Compensation Techniques 1. Assertion (A): The closed loop stability can be determined from the poles of an open loop system and the polar plot of the frequency response. Reason (R):…
Stability Analysis
Stability Analysis 1. First column elements of the Routh’s tabulation are 3, 5, -3/4, ½, 2. It means that there are: a) Is one root in the left half of…
