Chemical Engineering · all questions

Process Control And Instrumentation
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318

Questions

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Q301

Time constant is the

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Q302

Optical activity of a solution can be determined using a

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Q303

What is the ratio of output amplitude to input amplitude for a sinusoidal forcing function in a first order system?

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Q304

Working principle of radiation pyrometer is based on the

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Q305

Which of the following is never used as an element of industrial resistance thermometer?

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Q306

Strain gage uses an electrical conductor wire, which when elastically stretched increases in length and reduces in diameter. Both these dimensional changes result in __________ in the electrical resistance of the wire.

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Q307

On-off controllers are normally used for

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Q308

A pyranometer is an instrument used for measuring the

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Q309

A pyrheliometer is an instrument used for measuring the

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Q310

Feed forward controller accounts for the __________ changes.

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Q311

Composition of natural gas is determined by the

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Q312

Thermocouple is suitable for measuring

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Q313

Continuous measurement of moisture content of paper in paper industry is done by measuring the

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Q314

Measurement of sub-zero Celcius temperature in industry is done most commonly by

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Q315

Degree to which an instrument indicates the changes in measured variable without dynamic error is called its

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Q316

Concentration of sugar solution can be determined by the

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Q317

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

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Q318

The response of two tanks of same size and resistance in series is

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