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Process Control and Instrumentation

Process Control and Instrumentation
In Bode plot, A.R. vs. w is plotted on a/an __________ graph paper.

Ordinary
Log-lag
Semi-log
Triangular

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Process Control and Instrumentation
Presence of a small amount of water in the organic systems can be determined by the __________ method.

Dielectric constant end loss factor
Emission spectroscopy
Polarimetry
Electrical conductivity

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Process Control and Instrumentation
Instrumentation in a plant offers the advantage of

All of these
Greater safety of operation
Better quality of product
Greater operation economy

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Process Control and Instrumentation
Emission spectroscopy is used for

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

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Process Control and Instrumentation
An amplitude ratio of 0.1 corresponds to __________ decibels.

-10
-20
20
10

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Process Control and Instrumentation
Temperature of molten pig iron (1450°C) and molten slag (1500°C) flowing out of a blast furnace is measured by a/an

Radiation pyrometer
Either B or C
Chromel-alumel thermocouple
Optical pyrometer

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