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Process Control and Instrumentation

Process Control and Instrumentation
Liquid discharge from a tank or reservoir can not be measured by

Weirs
Mouthpieces
Notches
Orificemeters

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Process Control and Instrumentation
Smoke density of the flue gas going out of the chimney is measured by a

Thermal conductivity meter
Chromatograph
Polarograph
Photo electric cell

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Process Control and Instrumentation
Temperature measuring instruments are standardised mostly with __________ points of pure substances.

Melting
Both A & B Here
Neither A nor B Here
Boiling

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Process Control and Instrumentation
Pick out the first order system from among the following.

Mercury in glass thermometer kept in boiling water
Non-interacting system of two tanks in series
Interacting system of two tanks in series
Damped vibrator

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Process Control and Instrumentation
Stability of a control system containing a transportation lag can be best analysed by

Frequency response methods
Root locus methods
Routh test
None of these

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Process Control and Instrumentation
High temperature of around 2000°C of incandescent gas mantles is measured by a/an

None of these Here
Specially designed thermocouple
Radiation pyrometer
Optical pyrometer

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