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?

CO

CO₂

O₂

N₂

CO

CO₂

O₂

N₂

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Process Control and Instrumentation
Working principle of bimetallic thermometers is difference in linear co-efficient of thermal expansion of two strips of different metals welded together. Which of the following has the maximum thermal co-efficient of linear expansion?

Nickel

Chromel

Invar

Brass

Nickel

Chromel

Invar

Brass

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Process Control and Instrumentation
__________ is undesirable in thermocouples used in industries,

Oxidation resistance

Corrosion resistance

Linear relation of emf to temperature

Non-linear relation of emf to temperature

Oxidation resistance

Corrosion resistance

Linear relation of emf to temperature

Non-linear relation of emf to temperature

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Process Control and Instrumentation
Which of the following can measure temperatures in the range of - 20 to 300°C ?

Mercury in glass thermometer

Resistance thermometer

Vapor pressure thermometer

None of these

Mercury in glass thermometer

Resistance thermometer

Vapor pressure thermometer

None of these

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Process Control and Instrumentation
Radiation pyrometers as compared to thermocouples

Can measure higher temperature

Has a slower speed of response

Can't measure the temperature of moving objects

Is more affected by corrosive atmosphere

Can measure higher temperature

Has a slower speed of response

Can't measure the temperature of moving objects

Is more affected by corrosive atmosphere

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Process Control and Instrumentation
Presence of a small amount of water in the organic systems can be determined by the __________ method.

Dielectric constant end loss factor

Emission spectroscopy

Electrical conductivity

Polarimetry

Dielectric constant end loss factor

Emission spectroscopy

Electrical conductivity

Polarimetry

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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 Working principle of bimetallic thermometers is difference in linear co-efficient of thermal expansion of two strips of different metals welded together. Which of the following has the maximum thermal co-efficient of linear expansion?

Process Control and Instrumentation __________ is undesirable in thermocouples used in industries,

Process Control and Instrumentation Which of the following can measure temperatures in the range of - 20 to 300°C ?

Process Control and Instrumentation Radiation pyrometers as compared to thermocouples

Process Control and Instrumentation Presence of a small amount of water in the organic systems can be determined by the __________ method.

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
Working principle of bimetallic thermometers is difference in linear co-efficient of thermal expansion of two strips of different metals welded together. Which of the following has the maximum thermal co-efficient of linear expansion?

Process Control and Instrumentation
__________ is undesirable in thermocouples used in industries,

Process Control and Instrumentation
Which of the following can measure temperatures in the range of - 20 to 300°C ?

Process Control and Instrumentation
Radiation pyrometers as compared to thermocouples

Process Control and Instrumentation
Presence of a small amount of water in the organic systems can be determined by the __________ method.