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Process Control and Instrumentation

Process Control and Instrumentation
pH meter has

One cell
Three cells
No cell
Two cells

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Process Control and Instrumentation
Working principle of disappearing filament type optical pyrometer is based on the

Wien's law
Seebeck effect
Peltier effect
Kirchoff's law

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Process Control and Instrumentation
The transfer function of a first order system is

None of these
1/Ts
1/(Ts + 1)
S/(Ts + 1)

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Process Control and Instrumentation
Out of the following temperature measuring instruments, the measurement accuracy will be minimum for the

Alcohol filled thermometer
Iron-constantan thermocouple
Optical pyrometer
Mercury in glass thermometer

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

U-tube manometer
Bourdon gauge
Inclined tube manometer
Pirani guage

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Process Control and Instrumentation
Flapper nozzle is used in a/an __________ controller.

Pneumatic
None of these
Electronic
Hydraulic

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