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?

CO₂

N₂

CO

O₂

CO₂

N₂

CO

O₂

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Process Control and Instrumentation
The time constant of a unity gain, first order plus time delay process is 5 min. If the phase lag at a frequency of 0.2 rad/min is 60°, then the dead time (in minutes) is

π/6

π/12

π/3

5π/12

π/6

π/12

π/3

5π/12

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Process Control and Instrumentation
A non-linear system will have __________ steady state values.

One

Two

Three

More than one

One

Two

Three

More than one

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

Bubbler system

Diaphragm box system

Differential pressure manometer

Air-trap system

Bubbler system

Diaphragm box system

Differential pressure manometer

Air-trap system

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Process Control and Instrumentation
Continuous flue gas analyser makes use of paramagnetic properties of some of its constituents, which move towards the strongest part of the magnetic field thus displacing diamagnetic gases. Which of the following gases is diamagnetic?

NO

O₂

CO₂

NO₂

NO

O₂

CO₂

NO₂

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Process Control and Instrumentation
When a bare thermocouple is covered by a protective sheath, the response becomes

Slower and oscillatory

Faster and oscillatory

Faster and non-oscillatory

Slower and non-oscillatory

Slower and oscillatory

Faster and oscillatory

Faster and non-oscillatory

Slower and non-oscillatory

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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 The time constant of a unity gain, first order plus time delay process is 5 min. If the phase lag at a frequency of 0.2 rad/min is 60°, then the dead time (in minutes) is

Process Control and Instrumentation A non-linear system will have __________ steady state values.

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

Process Control and Instrumentation Continuous flue gas analyser makes use of paramagnetic properties of some of its constituents, which move towards the strongest part of the magnetic field thus displacing diamagnetic gases. Which of the following gases is diamagnetic?

Process Control and Instrumentation When a bare thermocouple is covered by a protective sheath, the response becomes

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
The time constant of a unity gain, first order plus time delay process is 5 min. If the phase lag at a frequency of 0.2 rad/min is 60°, then the dead time (in minutes) is

Process Control and Instrumentation
A non-linear system will have __________ steady state values.

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

Process Control and Instrumentation
Continuous flue gas analyser makes use of paramagnetic properties of some of its constituents, which move towards the strongest part of the magnetic field thus displacing diamagnetic gases. Which of the following gases is diamagnetic?

Process Control and Instrumentation
When a bare thermocouple is covered by a protective sheath, the response becomes