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Process Control and Instrumentation

Process Control and Instrumentation
Hot wire anemometer is used for the measurement of

Flow rates of fluids
Thermal conductivity of gases
Very high temperature
Flow rates of granular solids

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

Bi-metallic thermometers
Thermocouples
Resistance thermometers
Gas thermometers

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

Thermocouple
Mercury in glass thermometer
Reistance thermometer
Vapor pressure thermometer

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Process Control and Instrumentation
The __________ of a vapor pressure thermometer is a primary element.

None of these
Pointer
Bulb
Bourdon tube

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Process Control and Instrumentation
Liquid flow rate in an open channel can not be measured by a/an

Orifice meter
Rectangular weir
V-notch
Cipolletti weir

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Process Control and Instrumentation
When a bare thermocouple is covered by a protective sheath, the response becomes

Slower and oscillatory
Slower and non-oscillatory
Faster and non-oscillatory
Faster and oscillatory

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