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Process Control and Instrumentation

Process Control and Instrumentation
What is the ratio of output amplitude to input amplitude for a sinusoidal forcing function in a first order system?

1
None of these
< 1
>1

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Process Control and Instrumentation
Thermocouple in a thermal well behaves as a true

Second order system (overdamped)
First order system
Multiple first order system
Second order system (underdamped)

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Process Control and Instrumentation
A proportional controller with a gain of Kc is used to control a first order process. The offset will increase, if

Integral control action is introduced
Kc is reduced
Kc is increased
Derivative control action is introduced

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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
Out of the following themocouple wire insulating material, the highest temperature rating is for

Teflon
Asbestos
Fibre glass
Ceramic fibre

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

None of these
Bourdon tube
Bulb
Pointer

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