North Maharashtra University 2010 B.E Instrumentation Technology Jalgaon, ,Instrumentation - Question Paper

Seat No.___________

PROCESS INSTRUMENTATION(New)


Time:3 Hours Max.Marks:100
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Istructions: 1)Do not write anything on ques. paper other than Seat No.
2)Solve any 2 ques. from every unit.
3)Figures to the right indicate full marks.
4)Neat diagram must be drawn wherever nesessary.
5)Assume suitable data if necessary.
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UNIT-I


1. a)Explain multicapacity process in detail. define interacting loop and
non interacting lags. [Marks 10]

b)Explain subsequent process characteristics: [Marks 10]

i) Steady state gain.
ii)Process gain.
iii)Variable pressure drop.
iv)Transmitter gain.

c)Explain constant step analysis method for finding time constant with an
example. [Marks 10]


UNIT-II


2. a) i) discuss with sketch flow control loop. [Marks 10]
ii) discuss with sketch level control loop.

b)Explain in detail PID Controller. [Marks 10]

c)For non linear controller discuss following: [Marks 10]
i)Describing function
ii)Limiter
iii)Dead Zone
iv)Dead band.

UNIT-III


3. a)Explain with sketch ratio control loop in detail. [Marks 10]

b)Explain with sketch selective control loop. [Marks 10]

c)State and discuss what do you mean by decoupling.Describe any 1 method
of decoupling. [Marks 10]


UNIT-IV


4.a)Explain with sketch 3 element drum level control. [Marks 10]

b)Explain with sketch furnace control of heat exchanger. [Marks 10]

c)Explain with neat diagram about burner management and control. [Marks 10]


UNIT-V


5.a)Draw and discuss instrumentation scheme for compressor control. [Marks 10]

b)Sketch and discuss intrumentation scheme for cooling tower. [Marks 10]

c)Sketch and discuss intrumentation scheme for multi effect evaporator. [Marks 10]

Earning:   Approval pending.