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Process Control and Instrumentation

Process Control and Instrumentation
Paramagnetism method is not used for the composition determination of __________ in gases.

Any of these
Oxides of nitrogen
Oxygen
Carbon dioxide

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Process Control and Instrumentation
Positioning controllers are used for

Low loads
Temperature changes
Flow rate changes
High loads

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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?

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

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Process Control and Instrumentation
Bimetal strips are not used in

Thermocouples
Thermostats
Bimetallic thermometers
Relays for opening & closing of electrical circuits

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Process Control and Instrumentation
The response of two tanks of same size and resistance in series is

Critically damped
Under damped
None of these
Over damped

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Process Control and Instrumentation
The __________ of the fluid contained in the temperature sensing element (i.e., bulb) of filled system thermometers changes with change in temperature.

Pressure
Volume
All of these
Viscosity

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