Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 5th Sem New 2151705 Process Control Systems Previous Question Paper
1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?V (NEW) EXAMINATION ? WINTER 2018
Subject Code:2151705 Date:16/11/2018
Subject Name:Process Control Systems
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) Define term
1) Offset 2 ) dynamic error 3) Neutral Zone
03
(b) What are the performance criterions to design a control system? 04
(c) Explain the Dynamic behaviour of the First and second order
Processes
07
Q.2 (a) What is the neutral zone and its advantages 03
(b) What is discrete time control? 04
(c) Explain the concept of control mode. With suitable diagram and
equations explain PID controller.
07
OR
(c) A Liquid level control system linearly converts a displacement
of 2 to 3 meters in to 4 -20 mA control signal. A realy serves as
a two position controller to open or close an inlet valve. The
relay closes at 12 mA and open at 10 mA find a) the relation
between displacement and current b) the neutral zone
07
Q.3 (a) What is the mass balance equation of simple liquid level
system
03
(b) How to convert nonlinear term to linear and why? 04
(c) What do you mean by tuning of controller? Explain Z-N method
of tuning
07
OR
Q.3 (a) Define the terms 1)Range 2) Error 3) Manipulated Variable 03
(b) Explain Proportional controller with example 04
(c) Draw and Explain various configurations of ratio control schemes
07
Q.4 (a) What is integral windup? 03
(b) Explain the cascade control with example 04
(c) Develop the mathematical model of two tank series non
interacting system with mathematical calculation
07
OR
Q.4 (a) Differeciate the Feed forward and Feedback with suitable
example
03
(b) Explain the Feedback control system 04
(c)
Develop the mathematical model for CSTR system
07
Q.5 (a) What is FOPTD model? Explain with process reaction curve
method.
03
(b)
Explain three position controllers with example
04
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1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?V (NEW) EXAMINATION ? WINTER 2018
Subject Code:2151705 Date:16/11/2018
Subject Name:Process Control Systems
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) Define term
1) Offset 2 ) dynamic error 3) Neutral Zone
03
(b) What are the performance criterions to design a control system? 04
(c) Explain the Dynamic behaviour of the First and second order
Processes
07
Q.2 (a) What is the neutral zone and its advantages 03
(b) What is discrete time control? 04
(c) Explain the concept of control mode. With suitable diagram and
equations explain PID controller.
07
OR
(c) A Liquid level control system linearly converts a displacement
of 2 to 3 meters in to 4 -20 mA control signal. A realy serves as
a two position controller to open or close an inlet valve. The
relay closes at 12 mA and open at 10 mA find a) the relation
between displacement and current b) the neutral zone
07
Q.3 (a) What is the mass balance equation of simple liquid level
system
03
(b) How to convert nonlinear term to linear and why? 04
(c) What do you mean by tuning of controller? Explain Z-N method
of tuning
07
OR
Q.3 (a) Define the terms 1)Range 2) Error 3) Manipulated Variable 03
(b) Explain Proportional controller with example 04
(c) Draw and Explain various configurations of ratio control schemes
07
Q.4 (a) What is integral windup? 03
(b) Explain the cascade control with example 04
(c) Develop the mathematical model of two tank series non
interacting system with mathematical calculation
07
OR
Q.4 (a) Differeciate the Feed forward and Feedback with suitable
example
03
(b) Explain the Feedback control system 04
(c)
Develop the mathematical model for CSTR system
07
Q.5 (a) What is FOPTD model? Explain with process reaction curve
method.
03
(b)
Explain three position controllers with example
04
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2
(c) Explain shrinking and swelling phenomena in boiler drum and
show three element control of boiler drum level
07
OR
Q.5 (a) Explain the split range control for reactor pressure control
03
(b) Explain in detail the adaptive Control techniques
04
(c) What is degree of freedom? Explain it in the context of CSTH
with suitable equations and diagram.
07
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This post was last modified on 20 February 2020