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Process Control and Instrumentation

Process Control and Instrumentation
Flame photometry is used for the determination of compositional analysis of

Solids
Natural gas
Isotopes
Alkali metals

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Process Control and Instrumentation
A first order system with a time constant of 1 min is subjected to frequency response analysis. At an input frequency of 1 radian/min, the phase shift is

-90°
-45°
-180°
45°

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

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

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Process Control and Instrumentation
An aneroid barometer measures the __________ pressure.

Atmospheric
Gage
Absolute
Vacuum

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Process Control and Instrumentation
Load cells are used for the measurement of

Weight
Velocity
Stress
Strain

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Process Control and Instrumentation
Strain gage pressure transducers are used to measure __________ pressures.

Gage as well as vacuum
Neither A nor B
Absolute as well as differential
Both A & B Here

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