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Process Control and Instrumentation

Process Control and Instrumentation
Photoelectric pyrometers are suitable in the temperature range of __________ °C.

400-1600
400-1000
800-1600
800-2500

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Process Control and Instrumentation
Reference points i.e., ice point and steam point in Reaumer temperature scale are respectively

32° & 460°
32° & 80°
- 273° & 80°
0° & 80°

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Process Control and Instrumentation
Composition of alloys can be determined by

Refractrometer
None of these
Chromatograph
Polarograph

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Process Control and Instrumentation
In a shell and tube heat exchanger, the inlet temperature of heating/cooling fluid is the __________ variable.

Load
None of these
Manipulated
Controlled

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Process Control and Instrumentation
When a bare thermocouple is covered by a protective sheath, the response becomes

Slower and oscillatory
Faster and oscillatory
Faster and non-oscillatory
Slower and non-oscillatory

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Process Control and Instrumentation
Thermal conductivity measurement is used for the determination of

Specific gravity of petrofuels
O₂ percentage in the flue gas
Composition of an alloy
CO₂ percentage in the flue gas

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