Download GTU BE/B.Tech 2018 Winter 7th Sem New 2171103 Industrial Automation Question Paper

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Subject Code: 2171103

GUJARAT TECHNOLOGICAL UNIVERSITY

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Instructions:

1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

1. Q.1 (a) What is an Industrial Automation? Give Automation’s impact and explain their classification, also. 03
   

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   (b) What is robot? & Explain Basic construction and configuration of robots. 04
   (c) What do you mean by SCADA system? Explain basic SCADA architecture and typical features. 07
2. Q.2 (a) What is a PLC? Draw block diagram of PLC. Explain each block in detail. 03
   (b) Explain welding robot and Pick & place robot? 04
   (c) Describe the role and elements of computer-aided measurements and control with an example. 07
   

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   OR
   (a) Describe with neat sketches, the construction and working principle of magnetic flow meter. Also discuss its advantages and disadvantages. 07
3. Q.3 (a) How pH measurement is done? Explain it in brief. 03
   (b) Differentiate Power MOSFET & IGBT. 04
   (c) List the different types of speed-measuring devices. Explain, with neat sketches, the construction and working of any two of them. 07
   

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   OR
   (a) What do you mean by IoT ? How it is useful in industrial automation? 03
4. Q.4 (b) What do you mean by (i) Smart sensors-(ii)) MODBUS (iii) PROFI-BUS 04
   (c) What is sensor & Actuator? List various types of sensor & Explain construction and operation of Resistance thermometer. 07
5. Q.5 (a) Write the difference between PLC & DCS? 03
   

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   (b) List standard interface & Compare RS232 & RS485 interface. 04
   (c) Develop a PLC ladderdiagram for ON-OFF operation of Motor by using
   1. START-NO, STOP-NO push buttons.
   2. START-NC, STOP-NC push buttons. 07
   OR
   

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   (a) What are general rules to be followed during PLC installation? 03
6. Q.4 (b) List the PLC Programming Languages & Draw any four symbols of ladder Diagram. 04
   (c) A process fan P is to run only when all of the following conditions are met.
   - Input 1 is off.
   - Input 2 is on or input 3 is on, or both 2 and 3 are on.
   

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   - Inputs 5 and 6 both are off.
   - One or more of inputs 7, 8 or 9 is on.
   Obtain PLC Ladder Logic diagram for this problem. 07
7. Q.5 (a) Explain Scan cycle of PLC? 03
   (b) Why isolation is required in I/O Bus? Explain I/O Bus isolation using opto-coupler. 04
   

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   (c) Write short note on AC & DC drive. 07
   OR
   (b) Discuss about the various types of displays that can be achieved using DCS for efficient monitoring of plant parameters. 04
   (c) What do you mean by data highway? Explain role of fiber optic in data highway design and advantages of using fiber optic over twisted pair and coaxial cable. 07

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