Write differential equations for the following single capacitance process.
or ld
1. a)
OR
.in
Code No: 411352. IV-B.Tech. I-Semester Supplementary Examination November 2003 PROCESS CONTROL ( Electronics and Control Engineering ) Time: 3 hours Max.Marks:70 Answer any FIVE questions All questions carry equal marks ---
The above level process has a normal operating head of 1.2metre and a normal value of outflow of 3375 cubic centimeter per seconds. The cross section area of the vessel is 0.54 square metre. If the resistance to the flow is parabolic, determine the time constant of the system.
2. a)
Write the expressions of controller outputs in terms of error for all composite control modes. Derive the transfer functions also. How will be the controller outputs for the above control modes if the error varies linearly with time.
b)
Manometer is a second order system-say ‘True’ or ‘False’. Justify your answer with the derivation of the transfer function of Manometer. Show the response of this measuring system to a step change in input.
nt
3. a) b) c)
uW
b)
4. a)
b)
Aj
c) d)
Explain the working principle of the simple type of pneumatic proportional controller. With neat diagram. Add power amplifying pilot and negative feed back to the above. Explain the working principle of this new arrangement. Bring out the importance of this pilot and negative feed back. What modification is to be made in the above arrangement to make it as a PD controller?
(Contd..2)
Code No:411352.
.. 2 ..
OR
Explain the concept of cascade control. When a cascade control will be suitable for a process? Explain with an example. Write on tuning of cascade controllers.
6. a) b)
What are called pneumatic actuators? What are the five common methods of operating pneumatic actuators? Explain them in detail.
7. a) b)
Explain control schemes for the following: Combustion control of air fired heater. Steam temperature control in boilers.
a) b) c)
Write short notes on any TWO of the following: Feed forward control. Stability of exothermic chemical reactor. Nuclear power plant operations.
b) Add power amplifying pilot and negative feed back to the above. Explain the ... b) Stability of exothermic chemical reactor. c) Nuclear power plant operations.
W/mk] followed by a 25mm layer of fiber-glass insulation [k=0.048 W/mk]. ... boundary layer thickness in the heat transfer over a flat plate tested over its entire ...
c) Determine the symmetrical components of currents in the following circuit · (contdâ¦3) · AjntuWorld. ... a) Synchronous phase modifiery · b) Insulating materials.
b) Compare between computer system and PLC. 2. a) Define ... 7. a) Explain the concept of a computer network and discuss the requirement of · networks used ...
Explain the following top-down parsing methods with example. a) Recursive-Descent parsing · b) Predictive parser · 5.a) Explain about the specification of a ...
system? Explain briefly about the various instructions used and also the possible · variations in each ... d) Storage mechanism and (e)Data transfer rate. ... b) Explain the direct memory access (DMA) mechanism of transfer of date between.
b) Explain the operation of Token ring method. 4.a) What are bridges? What key factors are considered while designing the · bridges. b) Explain the operation of ...
mutual exclusion may be violated. b) Discuss the timestamp-based protocol for concurrent atomic transactions. 7.a) Differentiate protection and security.
b) State and prove Chebyshev's inequality. 4. A population consists of the five numbers 2,3,6,8,11. Consider all possible · samples of size two which can be ...
signed 16-bit numbers. n xi · 2 · b) Write an 8086 assembly language program to compute Σ ------ · i=1 n · where xi is represented in 16-bits. 4.a) List and ...
uncertainity was high and the search for alternatives is randomized in natureâ. Explain how the simulation modelling technique with a man-machine interaction.
Code No: 320452. III-B.Tech II-Semester Supplementary Examination December2002/January 2003 · LINEAR DIGITAL I.C.APPLICATIONS · (Common to Electronics and Communication Engineering, · Electronics and Control Engineering, Electronics Instrumentation ·
Describe the manufacturing process of paper with a neat flow diagram. 4. a) Distinguish between Oils and ... Toilet Soaps · (c) · Vinyl Chloride (e) · Nylon - 6,6 (f).
ARTIFICIAL INTELLIGENCE · (Computer Science ... Every dog has bitten a mail carrier (ii) Every dog has bitten every mail · carrier. b) Explain the six ...
articular cartilage surfaces. 7.a) With the help of a P-V curve of a lung, explain the normal breathing mechanism. b) What are the lung mechanical parameters.
Explain in detail about the instruments used for open heart surgery. 5. Explain in detail about different pre-operative procedures to be performed for · a subject.
Draw and explain the three layer networks that emulates the 'XOR' function. ... Hopfield network could be used to perform error correction, although in fact, it is.
b) You are asked to conduct an energy audit of a foundry industry located in · Hyderabad. Explain how you would conduct the energy audit, in a chronological.
starter, (iii) Auto transformer starter limiting the supply line starting current to · twice the full-load value. Find the auto-transformer tapping in this case. - - -.
1.a) Explain with a neat sectional view the operation and advantages of hot blast · cupola. b) Discuss the various types of refractories used for cupola lining.
5.a) What is sine bar. Sketch an arrangement for any one of the applications. b) Describe the constructional features and working of optical collimator.
