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Process Control and Instrumentation

Process Control and Instrumentation
Which of the following thermocouples has the widest temperature measurement range?

Iron-constantan
Copper-constantan
Platinum-platinum/rhodium
Chromel-alumel

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Process Control and Instrumentation
Silver point temperature is __________ °C.

860.5
760.5
1060.5
960.5

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Process Control and Instrumentation
Which of the following thermocouples can measure the maximum temperature?

Chromel-alumel
Platinum-rhodium
Tungsten-molybdenum
Iron-constantan

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

None of these
Isotopes
Solids
Alloys

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Process Control and Instrumentation
Nickel percentage in invar which is an iron-nickel alloy, and is used as a thermocouple material is

54
36
68
12

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Process Control and Instrumentation
Bode diagram is a plot of

None of these
Log (AR) vs. log (f) and (Φ) vs. log (f)
AR vs. log (f) and Φ vs. log (f)
Log (AR) vs. f and log Φ vs.f

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