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Process Control and Instrumentation

Process Control and Instrumentation
Composition of alloys can be determined by

None of these
Refractrometer
Polarograph
Chromatograph

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Process Control and Instrumentation
__________ controller has the maximum stabilising time.

PI
PID
P
PD

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Process Control and Instrumentation
Emission spectroscopy is used for

Determination of CO₂ in gases
Solids and metal analysis
NOxdetermination
Determining water purity

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Process Control and Instrumentation
Alphatron measures pressure __________ microns.

< 0.1
< 3
> 3
< 1

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Process Control and Instrumentation
For increased speed of response of an expansion pressure spring thermometer, the thermometer bulb should have a

Small specific heat
All of these
High thermal conductivity
Large area but small mass

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Process Control and Instrumentation
Degree to which an instrument indicates the changes in measured variable without dynamic error is called its

Reproducibility
Static characteristics
Speed of response
Fidielity

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