Download GTU (Gujarat Technological University Ahmedabad) B.Tech/BE (Bachelor of Technology/ Bachelor of Engineering) 2020 Winter 7th Sem 2171103 Industrial Automation Previous Question Paper
Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER?VII (NEW) EXAMINATION ? WINTER 2020
Subject Code:2171103 Date:21/01/2021
Subject Name:Industrial Automation
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.
Q.1 (a) Explain any one Displacement Transducer with neat diagram
3
(b) Write short note on MMI.
4
(c) Explain the basic principles of a Servo. Also explain DC Servo Motors.
7
Q.2 (a) Explain Need and advantages of Automation.
3
(b) Explain the working principle of Time-difference Type Ultrasonic Flow
4
Meter.
(c) List standard interface & Compare RS232 & RS485 interface.
7
Q.3 (a) Explain the concept of serial and parallel transmission techniques used for
3
communication between two intelligent devices.
(b) Explain various applications of signal conditioning circuits in DAQ.
4
(c) Explain use of Solenoid as an Electrical Actuator. How it is used to change
7
gears?
Q.4 (a) List the system characteristics that need to be analyzed for selection of PLC.
3
(b) Explain four major configurations of Industrial Robots.
4
(c) Discuss in brief about the various types of information display that can be
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achieved using DCS for efficient monitoring of plant parameters.
Q.5 (a) Explain features and advantages of DCS systems.
3
(b) Explain in detail the input-output module used in PLC.
4
(c) Explain computer based data acquisition (DAQ) system.
7
Q.6 (a) Explain RTD with neat diagrams. Write down the equation for the
3
relationship between Temperature and Resistance of conductor.
(b) Compare relative features of twisted pairs, coaxial cables and fiber optic
4
cable.
(c) Explain the basic principle of Mechanical Tachometers used for the speed
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measurement. Explain any two in detail with neat diagrams.
Q.7 (a) List the PLC Programming Languages & Draw four symbols of ladder
3
Diagram.
(b) What is Automation and explain different types of automation systems.
4
(c) Develop a Ladder Diagram for the Automatic Door Control System shown in
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Fig. 1.
Fig. 1. Automatic Door Control System
Control Purpose:
When someone enters the infrared sensing field, opening motor starts
working to open the door automatically till the door touches the
opening limit switch.
If the door touches the opening limit switch for 7 seconds and nobody
enters the sensing field, the closing motor starts working to close the
door automatically till the closing limit switch touched together.
Stop the closing action immediately if someone enters the sensing
field during the door closing process.
Q.8 (a) Explain the benefits of computers in measurements and control.
3
(b) What is IOT? List advantage of IOT in industry.
4
(c) Explain Architecture and block diagram of PLC.
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This post was last modified on 04 March 2021