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Process Control and Instrumentation

Process Control and Instrumentation
Gas chromatography is used for the measurement of

Pressure
Temperature
Flow rate
Concentration

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Process Control and Instrumentation
Stalagmometer is used for the measurement of

Kinematic viscosity
Refractive index
Optical activity
Surface tension

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Process Control and Instrumentation
The transfer function of a pure dead time system with dead time τd is

Eτds
1/(τds + 1)
Τds + 1
E-τds

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Process Control and Instrumentation
The closed loop pole of a stable second order system could be

One real positive and the other real negative
Both real and negative
Both real and positive
Complex conjugate with positive real parts

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Process Control and Instrumentation
Hot wire anemometer is used for the measurement of

Thermal conductivity of gases
Very high temperature
Flow rates of fluids
Flow rates of granular solids

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Process Control and Instrumentation
A constant volume gas thermometer employing __________ is used to measure sub-zero (i.e., < 0° C) temperature.

None of these
Nitrogen
Helium
Hydrogen

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