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Process Control and Instrumentation

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

Oxygen
Carbon dioxide
Any of these
Oxides of nitrogen

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

Flat spiral
Multiple helix
Bourdon tube
Single helix

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Process Control and Instrumentation
Temperature of molten pig iron (1450°C) and molten slag (1500°C) flowing out of a blast furnace is measured by a/an

Optical pyrometer
Either B or C
Chromel-alumel thermocouple
Radiation pyrometer

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Process Control and Instrumentation
Use of I-control along with P-control facilitates

Elimination of offset
Reduction of offset
Reduction of stability time
None of these

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Process Control and Instrumentation
In a shell and tube heat exchanger, the inlet temperature of heating/cooling fluid is the __________ variable.

Manipulated
Load
Controlled
None of these

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Process Control and Instrumentation
The level of a liquid under pressure can be determined using

Diaphragm box system
Bubbler system
Air-trap system
Differential pressure manometer

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