Process Control and Instrumentation

Which of the following controllers has maximum offset ?

Byadmin March 5, 2019August 24, 2021

Which of the following controllers has maximum offset ?

A. P-controller
B. P-I controller
C. P-D controller
D. P-I-D controller

Process Control and Instrumentation

Continuous flue gas analyser makes use of paramagnetic properties of some of its constituents, which move towards the strongest part of the magnetic field thus displacing diamagnetic gases. Which of the following gases is diamagnetic ?

Continuous flue gas analyser makes use of paramagnetic properties of some of its constituents, which move towards the strongest part of the magnetic field thus displacing diamagnetic gases. Which of the following gases is diamagnetic ?

A. CO2
B. O2
C. NO
D. NO2

Read More Continuous flue gas analyser makes use of paramagnetic properties of some of its constituents, which move towards the strongest part of the magnetic field thus displacing diamagnetic gases. Which of the following gases is diamagnetic ?
Process Control and Instrumentation

In a single tank system, the transfer function of level to inlet flow rate is__________________?

In a single tank system, the transfer function of level to inlet flow rate is__________________?

A. R/TS
B. R/(TS + 1)
C. 1/TS
D. None of these

Read More In a single tank system, the transfer function of level to inlet flow rate is__________________?
Process Control and Instrumentation

Flow rate of a river is measured by a/an____________________?

Flow rate of a river is measured by a/an____________________?

A. Pitot tube
B. Vane meter
C. Kennison nozzle
D. Open weir

Read More Flow rate of a river is measured by a/an____________________?
Process Control and Instrumentation

The frequency response of a dynamic element shows a constant magnitude ratio at all frequencies. The element exhibits a negative phase shift at all frequencies. The absolute value of the phase shift increases linearly with frequency. The element has the transfer function ?

The frequency response of a dynamic element shows a constant magnitude ratio at all frequencies. The element exhibits a negative phase shift at all frequencies. The absolute value of the phase shift increases linearly with frequency. The element has the transfer function ?

A. e-ηS
B. (T1S + 1)/(T2S + 1)
C. (T1S/(T2S + 1)
D. (T1S + 1)/(T2S

Read More The frequency response of a dynamic element shows a constant magnitude ratio at all frequencies. The element exhibits a negative phase shift at all frequencies. The absolute value of the phase shift increases linearly with frequency. The element has the transfer function ?
Process Control and Instrumentation

Which of the following filled system expansion thermometers has the lowest positive temperature measurement capability ?

Which of the following filled system expansion thermometers has the lowest positive temperature measurement capability ?

A. Mercury in glass thermometer
B. Alcohol in glass thermometer
C. Fused metal (Na or K) in steel thermometer
D. Nitrogen in steel thermometer

Read More Which of the following filled system expansion thermometers has the lowest positive temperature measurement capability ?
Process Control and Instrumentation

Zirconia probe is used for the measurement of___________________?

Zirconia probe is used for the measurement of___________________?

A. Humidity of air
B. % CO2 in flue gas
C. % O2 in flue gas
D. Speed of a submarine

Read More Zirconia probe is used for the measurement of___________________?

Similar Posts