No. of Pages:2 ௦
API ABDUL KALAM TECHNOLOGICAL UNIVERSITY

SECOND SEMESTER M.TECH DEGREE EXAMINATION, APRIL/MAY 20 18
Branch: Electrical and Electronics
Stream(s): Control Systems, Guidance and Navigational Control, Power Control and Drives

Course Code & Name.-

066112 — Process Control & Industrial Automation
Answer any twofull questions from each part

Limit answers to the required points.

Max. Marks: 60 Duration: 3 hours
PARTA

1. a.Witha neat block diagram explain the various process control elements. 6

ட. | What is transportation lag? 3

2. ദ. Explain about a second order system with a suitable example 5
9. Write a short note on heat exchangers 4

3. a. Explain the steps involved in PID controller tuning by ZN method? 5

0. What are the precautions to be taken in ZN tuning? 4
PART B

4, a. How a feed forward control system is different from a feedback control 6 system?
Explain with an example.

b. Explain the posiaon form of digital PID controller 3
5 a. Explain about any one of the control structure used in systems with time delay 5
b. Compare MPC and Model reference adaptive control schemes 4
6. ഒ. What is the control structure in internal mode control? 5 b Explain about over-
ride control system with a suitable example 4