Chemical Engineering - Process Control and Instrumentation

31. 

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

A. under damped
B. critically damped
C. over damped
D. none of the above

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

32. 

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. es
B.
C.
D.

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

33. 

The amplitude ratio for the sinusoidal response of __________ is < 1.

A. transportation lag
B. first order system
C. second order system
D. none of these

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

34. 

Which of the following is a 'contact' pyrometer ?

A. resistance pyrometer
B. optical pyrometer
C. radiation pyrometer
D. infra red pyrometer

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

35. 

Which of the following is not a speed measuring instrument ?

A. Psychrometer
B. Stroboscope
C. Tachometer
D. All (a), (b) and (c)

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.