Download GTU B.Tech 2020 Winter 5th Sem 3151705 Process Control Question Paper

Download GTU (Gujarat Technological University Ahmedabad) B.Tech/BE (Bachelor of Technology/ Bachelor of Engineering) 2020 Winter 5th Sem 3151705 Process Control Previous Question Paper

Seat No.: ________
Enrolment No.___________ 1
GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER?V (NEW) EXAMINATION ? WINTER 2020
Subject Code:3151705 Date:27/01/2021
Subject Name:Process Control
Time:10:30 AM TO 12:30 PM Total Marks: 56
Instructions:
1. Attempt any FOUR questions out of EIGHT questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.



Marks
Q.1 (a) With temperature control loop, explain the manipulated variable and
03
controlled variable terms.

(b) Draw flow and Level control loop.
04


(c) List and explain seven control objectives of process control

07
Q.2 (a) Describe the following terms
03
(1)Process Load (2)Dead time

(b) What is FOPDT modeling method.
04

(c) Explain two position control with application area.
07
Q.3 (a) What is importance of bias in Proportional control.
03

(b) Give features of P, I and D mode of control action.
04

(c) Derive the transfer function of two non-interacting tank.
07




Q.4 (a) Define proportional band. Show the diagram showing relation between
03
different value of gain and PB.

(b) Explain the override control of A boiler with diagram.
04

(c) Explain closed loop tuning method for PID Controller with one
07
example.
Q.5 (a) What are the applications of mathematical modelling in process
03
control are?

(b) What is integral windup? Draw the strategy for preventing windup.
04

(c) Explain proportional control scheme with features, limitations and its
07
remedy. Provide neat sketch for support of the same.
Q.6 (a) Show the Auctioneering control scheme for temperature control in
03
tubular reactor.

(b) Explain direct and reverse action of a controller with suitable
04
example.

(c) Explain the PI composite control mode in detail.
07
Q.7 (a) Draw the scheme of pressure control in a reactor using split range
03
control technique.

(b) Draw the diagram of selective control technique.
04

(c) Explain Cascade Control system in detail
07

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2
Q.8 (a) Explain PID tuning using open loop tuning method in brief.
03
(b) Give difference between feedback and feedforward control system.
04
(c) Explain Ratio control system with one suitable process example
07

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