Pune University BE Exam Paper Electronics Process Automation

Pune University BE Exam Paper Electronics Process Automation

B.E. (Electronics Engineering) PROCESS AUTOMATION (2008 Pattern) (Sem. – II)

Time :3 Hours]                                                                           [Max. Marks :100

Instructions to the candidates:

1)            Answer any 3 questions from each section.

2)            Answers to the two sections should be written in separate books.

3)             Neat diagrams must be drawn wherever necessary.

4)             Use of logarithmic tables, slide rule, Mollier charts, electronic pocket calculator and steam tables is allowed.

5)            Assume suitable data, if necessary.


QIA a) Draw diagram with appropriate sensing element for temperature control process automation of reactor. Electrical heater is used for heating. [8]

b) Explain process control principles with:                                                            [8]

i) Human Aided Control  ii) Automatic Control


Q2) a) What is process. Draw and Explain Process control block diagram in detail.  [8]

b) List various controller modes? Explain continuous controller mode in detail.      [8]

Q3) a) Explain pneumatic proportional derivative mode controller.        [8]

b)            Why tuning is required for controller Explain self tuning regulator. [8]


Q4) a) Draw schematic diagram of a PI and PD controller using OPAMPs. [8]

b) Explain the factors consider for selection of control valve.                                                                [8]


Q5) Write short note on (any Three)                                                                               [18]

a)            Control system parameters.

b)            Different types of control valve and their applications.

c)            Valve noise.

d)            Instrumentation Standard signsls.


Q6) Explain in detail following. (any Three)                                                                [18]

a)            Cavitation and flashing.

b)            Tunning of PID Controller.

c)            Hydraulic Controllers.

d)            Valve Sizing.


Q7) a) Explain with examples application of selective and adaptive control system in process industry.                                                                                                 [8]

b) Explain in detail statistical process control. Compare statistical process Control and process control.                                                                                         [8]


Q8) a) Explain Feedback Control system. What is the limitations of feedback control system how it overcomes?                                                                                [8]

b) Explain with suitable example feed forward control system.                         [8]

Q9) a) Define term heat exchanger. Explain any one type of heat exchanger. [8]

b)            Why robotics is needed in process Industry. Explain with examples. [8]


QIO) a) With neat block diagram explain basic components of robotic systems. [8]

b)            Write Classification of robotics. Explain different applications in industry.



Explain function of Alarm Annunciator in process industry.                    [6]

Draw and explain instrumentation diagram for Distillation Column Control.


Explain role Control panels in process automation.                                    [6]


Why needs supervisory control system in industry. Draw the block diagram of a Distributed Control system and explain the function of each block.                           [10]

Write a note on SCADA.   [8]

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