Process Control and Instrumentation

Flame photometry is used for the determination of compositional analysis of_______________?

Byadmin March 5, 2019August 24, 2021

Flame photometry is used for the determination of compositional analysis of_______________?

A. Solids
B. Alkali metals
C. Natural gas
D. Isotopes

Process Control and Instrumentation

The offset introduced by proportional controller with gain Kc in response of first order system can be reduced by ____________________?

The offset introduced by proportional controller with gain Kc in response of first order system can be reduced by ____________________?

A. Reducing value of Kc
B. Introducing integral control
C. Introducing derivative control
D. None of the above

Read More The offset introduced by proportional controller with gain Kc in response of first order system can be reduced by ____________________?
Process Control and Instrumentation

Smoke density of the flue gas going out of the chimney is measured by a __________________?

Smoke density of the flue gas going out of the chimney is measured by a __________________?

A. Polarograph
B. Thermal conductivity meter
C. Photo electric cell
D. Chromatograph

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

Liquid flow rate in an open channel cannot be measured by a/an __________________?

Liquid flow rate in an open channel cannot be measured by a/an __________________?

A. Orifice meter
B. Cipolletti weir
C. Rectangular weir
D. V-notch

Read More Liquid flow rate in an open channel cannot be measured by a/an __________________?
Process Control and Instrumentation

Which of the following fluid flow measuring devices can measure the largest flow rate ?

Which of the following fluid flow measuring devices can measure the largest flow rate ?

A. V-notch
B. Rotameter
C. Orificemeter
D. Weir

Read More Which of the following fluid flow measuring devices can measure the largest flow rate ?
Process Control and Instrumentation

Which of the following is a desirable characteristic of an instrument ?

Which of the following is a desirable characteristic of an instrument ?

A. High drift
B. High fidelity
C. High measuring lag
D. Poor reproducibility

Read More Which of the following is a desirable characteristic of an instrument ?
Process Control and Instrumentation

Use of I-control along with P-control facilitates ?

Use of I-control along with P-control facilitates ?

A. Elimination of offset
B. Reduction of offset
C. Reduction of stability time
D. None of these

Read More Use of I-control along with P-control facilitates ?

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