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Process Control and Instrumentation

Process Control and Instrumentation
Thermal conductivity cell is the primary element of a/an __________ analyser.

Carbon monoxide
Oxygen
Sulphur dioxide
Carbon dioxide

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Process Control and Instrumentation
The transfer function for a P-D controller is

Kc/τD s
Kc(1 +1/τD s)
Kc τD s
Kc(1+τD s)

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Process Control and Instrumentation
Presence of a small amount of water in the organic systems can be determined by the __________ method.

Electrical conductivity
Polarimetry
Dielectric constant end loss factor
Emission spectroscopy

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Process Control and Instrumentation
In a single tank system, the transfer function of level to inlet flow rate is

L(TS + l)
1/TS
R/(TS + 1)
R/TS

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Process Control and Instrumentation
Pick out the most suitable instrument for measuring temperature in the range of-40 to 425°C.

Radiation pyrometer
None of these
Mercury thermometer
Bimetallic thermometer

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Process Control and Instrumentation
The term analogous to the electrical current in a thermal system is the

None of these
Heat flow rate
Heat content in the system
Temperature difference

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