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Process Control and Instrumentation

Process Control and Instrumentation
__________ controller has the maximum stabilising time.

PI
P
PID
PD

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Process Control and Instrumentation
Temperature measurement range of iron-constantan thermocouple is 0 to 870°C. It can be used to measure sub zero temperature, because at lower temperature

Rusting of iron takes place
Embrittlement of iron occurs
Emf produced is very low of the order of microvolt
Both B and C Here

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

Stress
Strain
Velocity
Weight

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Process Control and Instrumentation
A bolometer is

Neither A nor B Here
An element which senses optical input and delivers thermal output
Used for the measurement of thermal radiation
Both A & B Here

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Process Control and Instrumentation
Which of the following is not a composition measuring instrument?

Thermal conductivity cell
Hot wire anemometer
Polarograph
Mass spectrometer

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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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