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Process Control and Instrumentation

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

Inclined tube manometer
Pirani guage
U-tube manometer
Bourdon gauge

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Process Control and Instrumentation
Mercury thermometer can be used to measure the temperature upto __________ °C.

100
250
750
350

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Process Control and Instrumentation
__________ type of element is normally not used in the bimetallic thermometers.

Multiple helix
Single helix
Flat spiral
Bourdon tube

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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.

Emission spectroscopy
Electrical conductivity
Polarimetry
Dielectric constant end loss factor

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Process Control and Instrumentation
Bourdon gauges are used for measuring pressure (kg/cm² )

> 2 (gauge)
> 10 (absolute)
< 2 (gauge)
< atmospheric

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Process Control and Instrumentation
A pyrheliometer is an instrument used for measuring the

Diffuse radiation
None of these
Beam radiation
Bright sunshine period

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