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Process Control and Instrumentation

Process Control and Instrumentation
The thermal emf-temperature relationship of most thermocouples is

Exponential
Square root
Parabolic
Linear

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Process Control and Instrumentation
Mass spectrometer is used for the composition analysis of

None of these
Alloys
Solids
Isotopes

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Process Control and Instrumentation
Thermal well made of __________ gives the fastest speed of response, while measuring temperature by thermocouples.

Vycor (a glass)
Steel
Nichrome
Inconel

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Process Control and Instrumentation
Range of hydrogen gas constant volume themometer is __________ °C.

0 to 100
100 - 500
400 - 1000
-10 to 20

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Process Control and Instrumentation
Composition of alloys can be determined by

None of these
Refractrometer
Chromatograph
Polarograph

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Process Control and Instrumentation
Which of the following does not figure in the list of seven substances selected for international temperature scale?

Antimony and silver (F.P)
Oxygen and sulphur (B.P)
Ice (F.P) and steam (B.P)
Zinc (B.P) and mercury (F.P)

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