GTU BE 2019 Summer Question Papers || Gujarat Technological University
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER-VII(NEW) EXAMINATION - SUMMER 2019
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Subject Code: 2171710
Subject Name: Process Dynamics and Control
Time: 02:30 PM TO 05:00 PM
Date: 27/05/2019
Total Marks: 70
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Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
| Q.1 | (a) | Explain dynamic behavior of first order linear system in detail. | MARKS | 03 |
| (b) | Explain single element control strategies for boiler. | 04 | ||
| (c) | Compare different control strategies for heat exchangers with suitable | 07 | ||
| Q.2 | (a) | Discuss shrinking and swelling effects in boiler with respect to control strategies. | 03 | |
| (b) | Compare two and three element level control for boiler. | 04 | ||
| (c) | Explain dynamic response of heat exchanger to change in steam temperature | 07 | ||
| OR | ||||
| Write short note on liquid to liquid heat exchangers. | 07 | |||
| Q.3 | (a) | What is inverse response? Explain with reference to boiler. | 03 | |
| (b) | Explain end point detection for continuous and batch reactor. | 04 | ||
| (c) | Write short note on burner management system. | 07 | ||
| OR | ||||
| Write short note on boiler optimization. | 03 | |||
| Q.4 | (a) | Explain steam temperature and pressure control for boiler. | 04 | |
| (b) | Explain different factors which are governing the reaction of chemical reactors. | 07 | ||
| (c) | Explain pH control for chemical reactors in brief. | 03 | ||
| Q.5 | (a) | Explain the control of overhead composition in distillation column. | 04 | |
| (b) | Explain different methods of controlling pressure in a distillation column. | 07 | ||
| OR | ||||
| Write a brief note on countercurrent exchangers. | 03 | |||
| Q.5 | (a) | Explain the control of bottom composition in distillation column. | 04 | |
| (b) | Write short note on sequential and logic control in batch process. | 07 | ||
| (c) | Write short note on distillate reflux flow control. | 03 | ||
| Q.S | (a) | Explain column pressure control in distillation column. | 04 | |
| (b) | Explain the unit operations used in food and pharmaceutical industries with suitable process flow diagram. | 07 | ||
| OR | ||||
| What is dead time in process. Explain it with example. | 03 | |||
| Q.S | (a) | Discuss different design aspects for waste water treatment plant. | 04 | |
| (b) | Explain the unit operations of cement industry with suitable process flow diagram | 07 |
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