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Process Control and Instrumentation

Process Control and Instrumentation
In a single tank system, the transfer function of __________ to inlet flow rate is 1/TS+1.

Both A & B Here
Outlet flow rate
Level
Neither A nor B Here

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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
O₂
CO
N₂

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Process Control and Instrumentation
Flow rate through an orifice is __________ the pressure differential.

Proportional to
Proportional to the square root of
Inversely proportional to the square root of
Inversely proportional to the square of

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Process Control and Instrumentation
Measurement of pressure in ammonia reactor is done by

Pirani guage
Inclined tube manometer
Bourdon gauge
U-tube manometer

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Process Control and Instrumentation
Relationship between absorption/evolution of heat at the thermocouple junctions and the current flow in the circuit is given by __________ effect.

None of these
Thomson
Seebeck
Peltier

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Process Control and Instrumentation
Photoelectric pyrometers are suitable in the temperature range of __________ °C.

400-1600
800-1600
800-2500
400-1000

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