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Process Control and Instrumentation

Process Control and Instrumentation
In a single tank system, the transfer function of __________ to inlet flow rate is 1/TS+1.

Both A & B Here
Neither A nor B Here
Level
Outlet flow rate

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Process Control and Instrumentation
Measurement of sub-zero Celcius temperature in industry is done most commonly by

Bi-metallic thermometers
Resistance thermometers
Gas thermometers
Thermocouples

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Process Control and Instrumentation
Smoke density of the flue gas going out of the chimney is measured by a

Photo electric cell
Thermal conductivity meter
Chromatograph
Polarograph

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Process Control and Instrumentation
The inverse Laplace transform of the function f(s) = 1/S(1 + S) is

1 - e-t
1 + e-t
1 - et
1 + et

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Process Control and Instrumentation
Very low pressure is expressed in microns(μ), which is equal to __________ mm of Hg coloumn (absolute) at 0°C.

0.001
0.0001
0.1
0.01

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Process Control and Instrumentation
Measurement of pressure in ammonia reactor is done by

U-tube manometer
Pirani guage
Inclined tube manometer
Bourdon gauge

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