Direct Method & Constructing of Liapunov for the Linear & Non-Linear System
Direct Method & Constructing of Liapunov for the Linear & Non-Linear System 1. If the Liapunov’s function cannot be found then the system is: a) Stable b) Unstable c) Conditionally…
Liapunov’s Stability Criterion – Part II
Liapunov’s Stability Criterion – Part II 1. The systems with equation such as dx/dt =F (x) are called: a) Stable systems b) Control systems c) Autonomous systems d) Unstable control…
Liapunov’s Stability Criterion – Part I
Liapunov’s Stability Criterion – Part I 1. If the system is asymptotically stable irrespective that how close or far it is from the origin then the system is: a) Asymptotically…
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…
