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Process Control and Instrumentation

Process Control and Instrumentation
Which thermocouple can be used to measure a temperature of around 1400°C ?

Aluminium-chromel
Platinum-platinum+rhodium
Copper-constantan
None of these

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Process Control and Instrumentation
The __________ of the fluid contained in the temperature sensing element (i.e., bulb) of filled system thermometers changes with change in temperature.

Pressure
All of these
Volume
Viscosity

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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?

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

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

Volts
Microvolts
Millivolts
Kilo volts

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Process Control and Instrumentation
Which of the following is not a differential pressure flow meter?

Rotameter
Orificemeter
Flow nozzle
Venturimeter

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Process Control and Instrumentation
Platinum resistance thermometer is the international standard for temperature measurement between

13.81°K to 903.9°K
Neither A nor B
Triple point of hydrogen and freezing point of antimony
Both A and B

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