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Process Control and Instrumentation

Process Control and Instrumentation
Photoelectric pyrometers are suitable in the temperature range of __________ °C.

400-1600
400-1000
800-2500
800-1600

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Process Control and Instrumentation
Continuous measurement of moisture content of paper in paper industry is done by measuring the

Thermal conductivity through the paper
None of these
Electrical resistance through the paper
Magnetic susceptibility

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Process Control and Instrumentation
Pyrometry refers to the measurement of temperature

All of these
Directly
With the mercurial thermometer upto 350°C
Which is of higher magnitude

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Process Control and Instrumentation
For an input forcing function, X(t) = 2t², the Laplace transform of this function is

4/s³
2/s²
2/s³
4/s²

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Process Control and Instrumentation
Thermal conductivity measurement com-prises the working principle of a

Chromatograph
Polarimeter
CO₂ analyser
Spectrometer

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Process Control and Instrumentation
All the thermocouples used for temperature measurement use dissimilar metal

Bars
Strips
Beads
Wires

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