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Process Control and Instrumentation

Process Control and Instrumentation
In a single tank system, the transfer function of __________ to inlet flow rate is 1/TS+1.

Both A & B Here
Level
Neither A nor B Here
Outlet flow rate

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Process Control and Instrumentation
A stable system is the one

Which exhibits an unbounded response to a bounded input
For which the output response is bounded for all bounded input
None of these
Which satisfies the conditions for a servo problem

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Process Control and Instrumentation
Which of the following is an undesirable dynamic characteristic of an instrument?

Dead zone
Static error
Reproducibility
Time lag

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Process Control and Instrumentation
Dead zone in an instrument must be less than __________ percent of the scale.

1.5
8
0.2
4

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Process Control and Instrumentation
Which of the following is not a differential pressure flow meter?

Flow nozzle
Venturimeter
Rotameter
Orificemeter

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Process Control and Instrumentation
Which of the following thermocouples will give the highest output for the same value of hot and cold junction temperature?

Iron-constantan
Chromel-constantan
Platinum-platinum + rhodium
All of these

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