Download AKTU B-Tech 4th Sem 2014-15 Instrumentation and Process Control Question Paper

Download AKTU (Dr. A.P.J. Abdul Kalam Technical University (AKTU), formerly Uttar Pradesh Technical University (UPTU) B-Tech 4th Semester (Fourth Semester) 2014-15 Instrumentation and Process Control Question Paper

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PAPER ID : 121411
Roll No.
.1 B. Tech.
(SEM. IV) THEORY EXAMINATION, 2014-15
?INSTRUMENTATION & PROCESS CONTROL
Tune : 2 Hours] [Total Marks : 50
Note : Attempt all questions.
1 ? Attempt any four questions : A _ 4>6=12
(a) De?ne an' instrumentation system with suitable
block diagrams.
(b) What is the load cell, what for it used ?
(e) What 18 primary sensing element and why 1s it
important 7
((1) Describe a method for the measuremetit of ?ow.
(e) A quanz piezoelecttic etystal having a thickness of
2mm and voltage sensitivity of 0. 0525 Vm/N is
subjected to a pressure of 1.5 M N/mz. Calculate
the voltage output if the permittivity of quartz is
40.6 ><10'12 F/m, calculate its charges sensitivity.
(f) Explaindig'italtmnsducer. Whyaretheseprefened
over analog transducer.
121411] 1 [ Contd...

2 Attempt any four questions : ? 4X3=12 4 Attempt any two questions : 2X7=l4
(a)
(b)
(c)
(d)
(e)
What is the piezo-resistive gauges and derive the (a)
expression for gauges factor.
Explain the Piezo-electric transducers and derive (b)
the expression for output voltage. (c)
Describe the working of resistance Thermometen
Explain the measurement of low pressure using
diaphragm with the help of diagram.
The LVDT with secondary voltage 5 Volt has a
range of :i: 100 mm, Find
(1) Output voltage when core is ? 7.5 mm from
centre.
(1i) Plot the o/p voltage core position for core
movement ??om + 7.5mm to ? 40 mm.?
(f) Describe various electrical methods used for
measurement of liquid level.
3 . Attempt any two questions : 2x6=12
(a) De?ne telemetry. Explain need of data tmnsmission
and telemetry.
(b) What is data acquisition system ? With suitable
diagram explain digital data acquisition system.
(c) De?ne time division multiplexing and frequency
division multiplexing as applied to telemetry.
121411] 2 [ Contd... 121411]
Describe the basic components of magnetic tape
recorder and application using direct techniques.
Explain x-y recorder and strip chart recorder.
What is process, control ?Explain with a suitable
example. Also explain the three term contrdl
action (PD).
3 [6275]