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Process Control and Instrumentation

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

Polarograph
Chromatograph
Thermal conductivity meter
Photo electric cell

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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.

0.0001
0.1
0.001
0.01

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Process Control and Instrumentation
Continuous shell temperature measurement in a liquid-liquid heat exchanger is done by a

Vapor pressure thermometer
Thermocouple
Reistance thermometer
Mercury in glass thermometer

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Process Control and Instrumentation
What is the Laplace transform of impulse input having magnitude 'X' ?

1
X
X²
1/X

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Process Control and Instrumentation
Platinum resistance thermometer can be used upto antimony point which is __________ °C, and is the temperature of equilibrium between solid antimony & liquid antimony at normal atmospheric pressure.

1261.93
961.93
630.74
1064.43

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Process Control and Instrumentation
The deflection of the free end of the bimetallic strips in a bimetallic thermometer with temperature is nearly

Parabolic
Non-linear
Hyperbolic
Linear

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