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Process Control and Instrumentation

Process Control and Instrumentation
Concentration of sugar solution can be determined by the

Emission spectroscopy
Polarimetry
Flame photometry
Oscillometry

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Process Control and Instrumentation
Which of the following temperature measuring instruments need not touch the object whose temperature is being measured?

Filled system thermometer
Mercury in glass thermometer
Radiation/infrared pyrometer
Thermo electric pyrometer

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Process Control and Instrumentation
Continuous measurement of specific gravity of a liquid is done by

Both A and C
Hydrometer
Contact-type electric indicators
Displacement meter

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Process Control and Instrumentation
The __________ of a vapor pressure thermometer is a secondary element.

None ofthese
Pointer
Bourdon tube
Bulb

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

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

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Process Control and Instrumentation
Thermisters which have a very high temperature co-efficient of resistivity belong to the class of solid called

Insulators
Conductors
Dielectrics
Semi conductors

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