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Process Control and Instrumentation

Process Control and Instrumentation
In a single tank system, the transfer function of __________ to inlet flow rate is 1/TS+1.

Level
Neither A nor B Here
Outlet flow rate
Both A & B Here

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Process Control and Instrumentation
Reference points i.e., ice point and steam point in Reaumer temperature scale are respectively

0° & 80°
32° & 460°
- 273° & 80°
32° & 80°

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Process Control and Instrumentation
Continuous measurement of moisture in paper is done by

Weighing
Hair-hygrometer
Sling psychrometer
High resistance Wheatstone's bridge circuit

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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

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

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Process Control and Instrumentation
The function of a transducer is to

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

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Process Control and Instrumentation
Dead zone in an instrument must be less than __________ percent of the scale.

0.2
4
8
1.5

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