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Process Control and Instrumentation

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

Polarimetry
Oscillometry
Emission spectroscopy
Flame photometry

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Process Control and Instrumentation
An emf of the order of mV is generated when two solutions of different hydrogen ion concentration are separated by a thin glass wall. This is the working principle of a

Polarograph
Polarimeter
Chromatograph
PH meter

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Process Control and Instrumentation
Strain gage uses an electrical conductor wire, which when elastically stretched increases in length and reduces in diameter. Both these dimensional changes result in __________ in the electrical resistance of the wire.

Exponential decrease
Increase
No change
Decrease

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Process Control and Instrumentation
Stalagmometer is used for the measurement of

Refractive index
Surface tension
Kinematic viscosity
Optical activity

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Process Control and Instrumentation
Which is the most suitable instrument for measuring pressure below 3 microns?

Bourdon guage
Mcleoid gauge
Alphatron
Ionisation gauge

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Process Control and Instrumentation
E.m.f. generated by thermocouples is of the order of

Volts
Millivolts
Microvolts
Kilo volts

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