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Process Control and Instrumentation

Process Control and Instrumentation
Psychrometer determines the

Humidity of gases
Water of crystallisation
Hygroscopic nature of solids
Moisture content of solids

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Process Control and Instrumentation
Temperature of __________ can not be measured by an optical or radiation pyrometer.

Rotary limestone calcination kiln
Molten slag flowing out of blast furnace
Combustion space in boilers
Hot blast (air) from stoves

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

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

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Process Control and Instrumentation
Specific conductance is defined as the reciprocal of resistance in ohms of 1c.c. of liquid at a specified temperature. Its value for distilled water is about __________ micro mho/cm³.

50
100
1
10

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Process Control and Instrumentation
All the thermocouples used for temperature measurement use dissimilar metal

Beads
Strips
Wires
Bars

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Process Control and Instrumentation
A pyrheliometer is an instrument used for measuring the

Beam radiation
Diffuse radiation
Bright sunshine period
None of these

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