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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
Which is the most suitable instrument for measuring pressure below 3 microns?

Ionisation gauge
Mcleoid gauge
Alphatron
Bourdon guage

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Process Control and Instrumentation
To increase the speed of response of a pressure spring liquid or gas expansion thermometer, the clearance space between the thermometer bulb and the thermal well should not be filled with

Air
A metal powder or graphite
Oil
Mercury

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Process Control and Instrumentation
Meleoid gauge measures the __________ pressure.

Very high
Positive
Atmospheric
Sub-atmospheric

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Process Control and Instrumentation
The root locus method, a pole of a transfer function G(s) is the value of s for which G(s) approaches

∞
-1
1

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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

0, π/2
-π/2, π/2
-π/2, 0
- ∞, π/2

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