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?

O₂

CO

CO₂

N₂

O₂

CO

CO₂

N₂

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Process Control and Instrumentation
Which of the following is not suitable for measuring the temperature of a red hot object in the range of 800 - 1600°C?

Thermocouples

Photoelectric pyrometer

Optical pyrometer

Radiation pyrometer

Thermocouples

Photoelectric pyrometer

Optical pyrometer

Radiation pyrometer

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Process Control and Instrumentation
Strain gage uses an electrical conductor wire, which when elastically stretched increases in length and reduces in diameter. Both these dimensional changes result in __________ in the electrical resistance of the wire.

No change

Increase

Decrease

Exponential decrease

No change

Increase

Decrease

Exponential decrease

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Process Control and Instrumentation
Number of poles in a system with transfer function 1/(s² + 2s² + 1) is

2

3

5

1

2

3

5

1

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Process Control and Instrumentation
The unit of 'time constant' of a system is the same as that of

Velocity

Time

(time)⁻¹

None of these

Velocity

Time

(time)⁻¹

None of these

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Process Control and Instrumentation
If response of a control system is to be free of offset and oscillation, the most suitable controller is

Proportional-integral (PI) controller

Proportional controller

Proportional-derivative(PD)controller

Proportional integral-derivative (PID) controller

Proportional-integral (PI) controller

Proportional controller

Proportional-derivative(PD)controller

Proportional integral-derivative (PID) controller

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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 Which of the following is not suitable for measuring the temperature of a red hot object in the range of 800 - 1600°C?

Process Control and Instrumentation Strain gage uses an electrical conductor wire, which when elastically stretched increases in length and reduces in diameter. Both these dimensional changes result in __________ in the electrical resistance of the wire.

Process Control and Instrumentation Number of poles in a system with transfer function 1/(s² + 2s² + 1) is

Process Control and Instrumentation The unit of 'time constant' of a system is the same as that of

Process Control and Instrumentation If response of a control system is to be free of offset and oscillation, the most suitable controller is

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
Which of the following is not suitable for measuring the temperature of a red hot object in the range of 800 - 1600°C?

Process Control and Instrumentation
Strain gage uses an electrical conductor wire, which when elastically stretched increases in length and reduces in diameter. Both these dimensional changes result in __________ in the electrical resistance of the wire.

Process Control and Instrumentation
Number of poles in a system with transfer function 1/(s² + 2s² + 1) is

Process Control and Instrumentation
The unit of 'time constant' of a system is the same as that of

Process Control and Instrumentation
If response of a control system is to be free of offset and oscillation, the most suitable controller is