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Process Control and Instrumentation

Process Control and Instrumentation
Dilatometer is used to measure

Strain
Stress
Deflection
Contraction/expansion due to changes in temperature

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Process Control and Instrumentation
Emf generated in a thermocouple depends on the temperature

Difference between cold junction and atmospheric temperature
Of hot junction only
Of cold junction only
Difference between hot and cold junctions

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Process Control and Instrumentation
Dome temperature of blast furnace stove is most accurately measured by a

Platinum-platinum/rhodium ther-mocuple
Iron-constantan thermocouple
Platinum resistance thermometer
Radiation pyrometer

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Process Control and Instrumentation
__________ temperature scale assigns 0° to the 'ice point' and 80° to the 'steam point'

Reumur
Farenhite
Rankine
Celcius

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Process Control and Instrumentation
Routh stability method uses __________ loop transfer function.

Either A or B
Open
Closed
Neither A nor B

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Process Control and Instrumentation
The maximum service temperature for fibre glass used as thermocouple wire insulation material is __________ °C.

500
250
1000
750

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