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Process Control and Instrumentation

Process Control and Instrumentation
Which is the most suitable instrument for measuring pressure below 3 microns?

Bourdon guage
Alphatron
Ionisation gauge
Mcleoid gauge

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Process Control and Instrumentation
The function of a transducer is to

Amplify the input signal
Convert the primary signal into a more useful quantity, usually an electric impulse
Modify the input signal
Codify/decodify the input signal

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Process Control and Instrumentation
Thermal conductivity cell is the primary element of a/an __________ analyser.

Oxygen
Sulphur dioxide
Carbon monoxide
Carbon dioxide

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Process Control and Instrumentation
Turbine flow meters are suitable for

Cryogenic flow measurements
Both B and C
Aerospace and in air borne applications
Very limited flow ranges

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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
>1
None of these
< 1

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Process Control and Instrumentation
Psychrometer determines the

Moisture content of solids
Hygroscopic nature of solids
Water of crystallisation
Humidity of gases

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