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Process Control and Instrumentation

Process Control and Instrumentation
A non-linear chemical system is exemplified by a/an

Non-isothermal CSTR
Mixer
Isothermal CSTR
None of these

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Process Control and Instrumentation
All the thermocouples used for temperature measurement use dissimilar metal

Strips
Beads
Bars
Wires

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Process Control and Instrumentation
Thermal well made of __________ gives the fastest speed of response, while measuring temperature by thermocouples.

Nichrome
Steel
Inconel
Vycor (a glass)

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Process Control and Instrumentation
A simple pitot tube measures the

Average velocity
Point velocity
Maximum velocity
Static pressure

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

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

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Process Control and Instrumentation
The frequency response of a first order system, has a phase shift with lower and upper bounds given by

-π/2, 0
- ∞, π/2
-π/2, π/2
0, π/2

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