This download link is referred from the post: GTU B.Tech 2020 Winter Question Papers || Gujarat Technological University
GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER-VIII (NEW) EXAMINATION — WINTER 2020
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Subject Code:2183607
Subject Name:Process Instrumentation, Dynamics & Control
Time:02:00 PM TO 04:00 PM
Instructions:
- Attempt any FOUR questions out of EIGHT questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
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| Q.1 (a) | Mention the importance of Laplace transform in process dynamics. | MARKS 03 |
| (b) | Draw the block diagram of a control system mentioning various components present in it. | 04 |
| (c) | Solve d3x/dt3 + 25 dx/dt2 - 2 = 4 + 2t, x(0)=1, x'(0)=0, x''(0) =-1 | 07 |
| Q.2 (a) | Find the final value of a function having laplace transform sG(s). | 03 |
| (b) | State and prove Initial value theorem | 04 |
| (c) | Stating the assumptions derive the transfer function of mercury in glass thermometer. | 07 |
| Q.3 (a) | Mention the characteristic features for response of a first order system for a step input | 03 |
| (b) | A tank having a cross sectional area of 2m2 is operating in a steady state with an inlet flowrate of 2 m3/min. The resistance of valve attached to tank outlet is 0.5 min/m2. Find the transfer function relating to H(s)/Q(s) | 04 |
| (c) | Derive the transfer function for the case of two tanks connected in series in a non-interacting manner. | 07 |
| Q.4 (a) | What is Transportation lag? Specify its importance in reference to control systems. | 03 |
| (b) | Mention any four terms used to characterize an underdamped second order system. | 04 |
| (c) | Derive the transfer function in a U tube manometer relating the applied pressure difference and manometer reading. | 07 |
| Q.5 (a) | State Nyquist Stability criterion. | 03 |
| (b) | Describe the stability of linear systems. | 04 |
| (c) | Show that for the case of a proportional controller for a change in set point offset decreases when the value of gain increases | 07 |
| Q.6 (a) | Derive the transfer function of a Proportional Integral Controller. | 03 |
| (b) | Differentiate Positive feedback and Negative feedback systems. Which feedback system is most commonly used in process Industries | 04 |
| (c) | Discuss various rules for plotting root locus of a closed loop feedback system. | 07 |
| Q.7 (a) | Mention various laws of thermoelectricity. | 03 |
| (b) | How McLeod Vacuum Gauge is used to measure Vacuum pressure? | 04 |
| (c) | Describe various Static & Dynamic Characteristics of measuring instruments. | 07 |
| Q.8 (a) | Write a short note on various pressure measurement systems mentioning the relationship between them. | 03 |
| (b) | How air purge system is used for level measurements? | 04 |
| (c) | With the help of a neat diagram explain how Venturimeter can be used to measure flow of liquids. | 07 |
Date:25/01/2021
Total Marks: 56
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This download link is referred from the post: GTU B.Tech 2020 Winter Question Papers || Gujarat Technological University
--- Content provided by FirstRanker.com ---