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Process Control and Instrumentation

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

Polarograph
Polarimeter
Chromatograph
Spectrometer

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Process Control and Instrumentation
A system with a double pole at the origin is unstable since the corresponding term in the time domain

Grows linearly with time
Is a constant
Grows exponentially with time
Decays linearly with time

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Process Control and Instrumentation
Starting temperature of optical radiation pyrometer is __________ °C.

1200
400
800
1500

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Process Control and Instrumentation
__________ is the static characteristics of an instrument,

Tine lag
Response
Drift
Dynamic error

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Process Control and Instrumentation
Typical specifications for design stipulates the gain margin and phase margin to be respectively

< 1.7 and > 30°
< 1.7 and < 30°
> 1.7 and < 30°
> 1.7 and > 30°

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Process Control and Instrumentation
The __________ of a vapor pressure thermometer is a functioning element.

Bourdon tube
None of these
Pointer
Bulb

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