Class Test: Chemical Engg-III rd Yr.(A1 , A2)
Process Measurement & Instrumentation
Marks:15
Answer Q:-1 any two :
Answer Q:-1 and any two from the rest:
1.
Answer any three:
Discuss briefly the working principle of diaphragm box acting as level
sensor.
Or
Explain in brief about the mechanism of float and shaft working for
pneumatic level transmission system
5
3.
Write down the flow rate equation for obstruction type flow sensor using
usual notations of variables and hence state the significance of expansion
factor.
Or
Illustrate the working principle of positive displacement type flow sensor.
5
4.
Explain the working principle of Pirani gauge under constant current mode
of operation.
Or
Illustrate with the help of diagram, the operation of torque-balance type
pressure transmitter
5
5.
State the significance of Plate height, Plate No. and Resolution for column
chromatography.
Or
1
Explain with the help of diagram, the operating principle of flame ionization
detector in chromatography.
5
[ Return the answer script of class test on 29th June alongwith that of
semester exam to mail-id : palashm.kushi@gmail.com]
2