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Process Control and Instrumentation

Process Control and Instrumentation
Maximum differential pressure in liquid manometer is __________ psi.

40
50
20
30

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Process Control and Instrumentation
__________ type of element is normally not used in the bimetallic thermometers.

Flat spiral
Single helix
Multiple helix
Bourdon tube

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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

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

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Process Control and Instrumentation
Flame photometry is used for the determination of compositional analysis of

Natural gas
Isotopes
Alkali metals
Solids

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Process Control and Instrumentation
Which of the following measurements can be made by the measurement of emf?

Degree of hydrolysis
Composition of complex ions
PH value
All of these

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Process Control and Instrumentation
Typical specifications for design stipulates the gain margin and phase margin to be respectively

< 1.7 and > 30°
> 1.7 and > 30°
< 1.7 and < 30°
> 1.7 and < 30°

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