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Process Control and Instrumentation

Process Control and Instrumentation
Polarisation of light forms the working principle of a

Polarimeter
Polarograph
Chromatograph
Spectrometer

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Process Control and Instrumentation
Bode stability method uses __________ loop transfer function.

Either A Or B Here
Neither A nor B Here
Closed
Open

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Process Control and Instrumentation
The transfer function for a P-D controller is

Kc(1 +1/τD s)
Kc/τD s
Kc(1+τD s)
Kc τD s

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Process Control and Instrumentation
On-off controllers are normally used for

Low loads
None of these
Temperature changes
Flow rate changes

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Process Control and Instrumentation
A photo electric device in which the resistance of the metal is directly proportional to the light striking on it, is known as photo-conductive cell. Photoelectric transducers are used for the measurement of those parameters, which can be used to produce variation in

Current
Flux density
Voltage
Light intensity

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Process Control and Instrumentation
__________ is an example of distributed parameter system

On-off controller
CSTR
None of these
Tubular reactor

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