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Process Control and Instrumentation

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

Alloys
Isotopes
None of these
Solids

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Process Control and Instrumentation
Composition of natural gas is determined by the

Mass spectrometer
Chromatograph
Haldane apparatus
Both B and C

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Process Control and Instrumentation
The time constant of a first order process with resistance R and capacitance C is

R + C
RC
1/RC
R - C

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Process Control and Instrumentation
Liquid argon level in a pressurised storage tank (at 3 kg/cm² ) is measured by a/an

Differential pressure gage
None of these
Gage glass
External float gage

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Process Control and Instrumentation
Which of the following fluid flow measuring devices can measure the largest flow rate?

Weir
Rotameter
Orificemeter
V-notch

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Process Control and Instrumentation
Which of the following filled system expansion thermometers has the lowest positive temperature measurement capability?

Mercury in glass thermometer
Alcohol in glass thermometer
Fused metal (Na or K) in steel thermometer
Nitrogen in steel thermometer

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