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# 2014 Acharya Nagarjuna University Computer Control of Process - Bapatla Engineering College - B.Tech 4th Year - Semester 1 - April 2014 Question paper

 Course: University/board: Acharya Nagarjuna University

Do you need the old question papers of Computer Control of Process - Bapatla Engineering College - B.Tech? This is the original question paper from the B.Tech fourth year first semester exam conducted by Bapatla Engineering College in April 2014. Feel free to make a copy and use it to prepare for your upcoming exams.

IV/IV B.Tech Degree Examinations, April 2014

First Semester

Computer Control of Process

Time : 3 hours

Maximum Marks : 60

Answer ONE question from each Unit

1. Answer the following [12 x 1 = 12M]
a) What is direct digital control?
b) What are the nodes that can be implemented using approximation algorithms in computer control?
c) What is pulse transform function?
d) What is the modified Z – transform of unit step function?
e) Define observability of discrete – time system.
f) What us the necessity of sampling?
g) What is DCS?
h) What is a ladder ring in PLC?
i) Mention the different types of adaptive control.
j) What are the special features of self tuning?
k) What is MCR function with reference to a PLC?
l) Define the term "Artificial Intelligence".

UNIT - I [1 x 12 = 12M]

2. a) Explain with a neat block diagram, the computer control system.
2. b) Explain supervisory control. (OR)
3. a) Find the state variable model for the following system represented by the difference equation y(k+3)+5y(k+2)+7y(k+1)+3y(k)=0.
3. b) Prove that controllability and observability concepts are dual to each other.

UNIT - II [1 x 12 = 12M]

4. a) Explain the procedure for obtaining pulse transfer function of a closed loop transfer function.
4. b) Write the advantages of digital PID controllers. (OR)
5. a) Explain the design of digital controller using Dahlin's and Kalman's algorithms.
5. b) Discuss about velocity form of digital PID algorithm.

UNIT - III [1 x 12 = 12M]

6. a) What is PLC? Explain in detail and also enlist that PLC offers advantages in comparison to electromechanical relays.
6. b) Write notes on installation and commissioning of PLC system. (OR)
7. a) Explain the communication facilities of a DCS.
7. b) Explain how data bus works in a DCS.

UNIT - IV [1 x 12 = 12M]

8. a) Briefly explain the principle of operation of an expert system with the help of neat sketch.
8. b) Write short notes on system identification. (OR)
9. a) Write short note on self tuning controllers.
9. b) Write short notes on artificial intelligence.

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