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Process Control and Instrumentation

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

Bulb
Bourdon tube
None ofthese
Pointer

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Process Control and Instrumentation
The thermal emf-temperature relationship of most thermocouples is

Exponential
Parabolic
Linear
Square root

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

None of these
Diffuse radiation
Beam radiation
Bright sunshine period

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

Bourdon gauge
U-tube manometer
Pirani guage
Inclined tube manometer

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Process Control and Instrumentation
Which of the following thermocouples is the most suitable for measuring a temperature of about 1600°C in an oxidizing atmosphere?

Copper-constantan
Platinum-platinum + rhodium
Iron-constantan
Chromel-alumel

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

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

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