# Anna University Coimbatore 2008 B.E Electrical and Electronics Engineering Control system QB unit 1 - exam paper

Wednesday, 16 January 2013 02:30Web

SUBJECT : CONTROL SYSTEMS SUB – CODE: EE 2253

UNIT – 1

**Part A**

**1.**What is Control System?

**2.**What is linear time invariant system?

**3.**provide the main classification of control systems?

**4.**What is open loop system? provide example.

**5.**What is closed loop system? provide example.

**6.**What do you mean by feedback in control systems?

**7.**elaborate the 2 kinds of feedback?

**8.**provide the advantages of negative feedback.

**9.**provide the advantages of closed loop system.

**10.**Defne transfer function.

**1**elaborate the advantages of transfer function modeling of systems?

**1.****1**List out the components of a feedback control system.

**2.****1**What is an fault detector?

**3.****1**What is a synchro? elaborate its trade names?

**4.****1**Mention the applications of a synchro.

**5.****1**What do you mean by a servomechanism?

**6.****1**elaborate the steps to find mathematical model of a system?

**7.****1**What is thermal resistance?

**8.****1**elaborate analogous systems?

**9.****20.**Compare open loop and closed loop systems.

**2**Write down the force-voltage analogies of mechanical components in Electrical components.

**1.****2**Write down the force-current analogies of mechanical components in Electrical components.

**2.****2**elaborate the Electrical analogues of force and rotational damping in torque – voltage analogy?

**3.****2**What do you mean by block diagram representation?

**4.****2**provide the advantages of block diagram reduction.

**5.****2**Write any 2 rules for block diagram reduction.

**6.****2**Write Mason's gain formula?

**7.****2**elaborate the basic elements used for modeling mechanical translational system.

**8.****2**elaborate the basic elements used for modeling mechanical rotational system?

**9.****30.**Name 2 kinds of electrical analogues for mechanical system.

**3**What is a signal flow graph?

**1.****3**What is transmittance?

**2.**Earning: Approval pending. |