Thermal conductivity based continuous flue gas analyser makes use of varying thermal conductivity of the constituents of flue gases. Which of the following constituents of flue gases has the maximum thermal conductivity?

Process Control and Instrumentation
Thermal conductivity based continuous flue gas analyser makes use of varying thermal conductivity of the constituents of flue gases. Which of the following constituents of flue gases has the maximum thermal conductivity?

N₂

O₂

CO₂

CO

N₂

O₂

CO₂

CO

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Process Control and Instrumentation
Operating range of a temperature measuring instrument is 800 to 1600°C. It could be a/an __________ pyrometer.

Radiation

None of these

Optical

Photoelectric

Radiation

None of these

Optical

Photoelectric

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Process Control and Instrumentation
Composition of alloys can be determined by

None of these

Refractrometer

Polarograph

Chromatograph

None of these

Refractrometer

Polarograph

Chromatograph

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Process Control and Instrumentation
Ordinary mercury in glass thermometer is used for measuring temperature upto 120°C. However, for measuring higher temperature upto __________ °C, thermometer is made by filling nitrogen under pressure above the mercury, which stops the evaporation of mercury and reduces the chance of broken thread of mercury.

350

550

700

250

350

550

700

250

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Process Control and Instrumentation
For increased speed of response of an expansion pressure spring thermometer, the thermometer bulb should have a

All of these

High thermal conductivity

Small specific heat

Large area but small mass

All of these

High thermal conductivity

Small specific heat

Large area but small mass

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Process Control and Instrumentation
Which of the following relates the emf. generated in a single homogeneous wire to the temperature difference?

Seebeck effect

None of these

Thomson effect

Peltier effect

Seebeck effect

None of these

Thomson effect

Peltier effect

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Process Control and Instrumentation

Process Control and Instrumentation Thermal conductivity based continuous flue gas analyser makes use of varying thermal conductivity of the constituents of flue gases. Which of the following constituents of flue gases has the maximum thermal conductivity?

Process Control and Instrumentation Operating range of a temperature measuring instrument is 800 to 1600°C. It could be a/an __________ pyrometer.

Process Control and Instrumentation Composition of alloys can be determined by

Process Control and Instrumentation For increased speed of response of an expansion pressure spring thermometer, the thermometer bulb should have a

Process Control and Instrumentation Which of the following relates the emf. generated in a single homogeneous wire to the temperature difference?

Process Control and Instrumentation
Thermal conductivity based continuous flue gas analyser makes use of varying thermal conductivity of the constituents of flue gases. Which of the following constituents of flue gases has the maximum thermal conductivity?

Process Control and Instrumentation
Operating range of a temperature measuring instrument is 800 to 1600°C. It could be a/an __________ pyrometer.

Process Control and Instrumentation
Composition of alloys can be determined by

Process Control and Instrumentation
For increased speed of response of an expansion pressure spring thermometer, the thermometer bulb should have a

Process Control and Instrumentation
Which of the following relates the emf. generated in a single homogeneous wire to the temperature difference?