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Process Control and Instrumentation

Process Control and Instrumentation
Emission spectroscopy is used for

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

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Process Control and Instrumentation
__________ thermometer can not measure sub-zero (< 0° C) temperature,

Vapor pressure
Mercury in glass
Bimetallic
Resistance

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Process Control and Instrumentation
Emf developed by a thermocouple while measuring a temperature of 400°C is 22 mV. The type of thermocouple used is

Platinum-platinum+rhyodium
Platinum-rhodium
Chromel-alumel
Iron-constantan

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Process Control and Instrumentation
In Bode plot, Φ vs ω is plotted on a/an __________ graph paper.

Triangular
Log-log
Ordinary
Semi-log

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Process Control and Instrumentation
A stable system is the one

None of these
For which the output response is bounded for all bounded input
Which exhibits an unbounded response to a bounded input
Which satisfies the conditions for a servo problem

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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

Static characteristics
Reproducibility
Speed of response
Fidielity

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