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Process Control and Instrumentation

Process Control and Instrumentation
Which of the following is a 'contact' pyrometer?

Resistance pyrometer
Optical pyrometer
Infra red pyrometer
Radiation pyrometer

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Process Control and Instrumentation
For measuring the temperature of a red hot furnace, which is the most suitable instrument?

Thermocouple
Optical pyrometer
Bimetallic thermometer
Platinum resistance thermometer

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Process Control and Instrumentation
Which of the following controllers has the least maximum deviation?

P-controller
P-D controller
P-I-D controller
P-I controller

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Process Control and Instrumentation
Compositional analysis of flue gas coming out of a furnace in respect of O₂ and CO₂% can be continuously done by a/an

Zirconia probe
Orsat apparatus
Thermal conductivity cell
Chromatograph

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

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

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Process Control and Instrumentation
Nitrogen gas constant volume thermometer is suitable for measuring a temperature of __________ °C.

0-100
< 0
> 50
> 100

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