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Process Control and Instrumentation

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

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

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Process Control and Instrumentation
Sub-zero temperature (< 0°C) can be measured by a constant volume gas thermometer employing

None of these
Hydrogen
Helium
Nitrogen

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Process Control and Instrumentation
Flapper nozzle is used in a/an __________ controller.

Pneumatic
Hydraulic
None of these
Electronic

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Process Control and Instrumentation
Liquid discharge from a tank or reservoir can not be measured by

Notches
Weirs
Orificemeters
Mouthpieces

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Process Control and Instrumentation
Small furnace draught is accurately measured by an inclined tube manometer, in which the manometric liquid used most commonly is

Water
Ethylene glycol
Paraffin
Carbon tetrachloride

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Process Control and Instrumentation
Use of I-control along with P-control facilitates

Reduction of offset
Elimination of offset
Reduction of stability time
None of these

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