Process Control and Instrumentation

_____________ is an example of distributed parameter system ?

Byadmin March 5, 2019August 24, 2021

_____________ is an example of distributed parameter system ?

A. Tubular reactor
B. CSTR
C. On-off controller
D. None of these

Process Control and Instrumentation

The frequency response of a first order system, has a phase shift with lower and upper bounds given by________________?

The frequency response of a first order system, has a phase shift with lower and upper bounds given by________________?

A. – ∞, π/2
B. -π/2, π/2
C. -π/2, 0
D. 0, π/2

Read More The frequency response of a first order system, has a phase shift with lower and upper bounds given by________________?
Process Control and Instrumentation

What is the Laplace transform of impulse input having magnitude „X‟ ?

What is the Laplace transform of impulse input having magnitude „X‟ ?

A. X
B. X2
C. 1/X
D. 1

Read More What is the Laplace transform of impulse input having magnitude „X‟ ?
Process Control and Instrumentation

Radiation pyrometers as compared to thermocouples____________________?

Radiation pyrometers as compared to thermocouples____________________?

A. Has a slower speed of response
B. Can measure higher temperature
C. Can’t measure the temperature of moving objects
D. Is more affected by corrosive atmosphere

Read More Radiation pyrometers as compared to thermocouples____________________?
Process Control and Instrumentation

In a shell and tube heat exchanger, the outlet temperature of heating/cooling fluid is the _____________ variable?

In a shell and tube heat exchanger, the outlet temperature of heating/cooling fluid is the _____________ variable?

A. Load
B. Manipulated
C. Controlled
D. None of these

Read More In a shell and tube heat exchanger, the outlet temperature of heating/cooling fluid is the _____________ variable?
Process Control and Instrumentation

According to Bode stability criterion, a system is unstable, if the open loop frequency response exhibits an amplitude ratio exceeding unity at frequency for which phase lag is_________________?

According to Bode stability criterion, a system is unstable, if the open loop frequency response exhibits an amplitude ratio exceeding unity at frequency for which phase lag is_________________?

A. 0°
B. 45°
C. 90°
D. 180°

Read More According to Bode stability criterion, a system is unstable, if the open loop frequency response exhibits an amplitude ratio exceeding unity at frequency for which phase lag is_________________?
Process Control and Instrumentation

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

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

A. Speed of response
B. Reproducibility
C. Fidelity
D. Static characteristics

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

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