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Chemical Engineering - Process Control and Instrumentation

Exercise : Process Control and Instrumentation - Section 4
41.
Mass spectrometer is used for the composition analysis of
alloys
solids
isotopes
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
A first order system with a time constant of 1 min is subjected to frequency response analysis. At an input frequency of 1 radian/min, the phase shift is
45°
-90°
-180°
-45°
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
__________ stability method uses open loop transfer function.
Nyquist
Mikhalov
Ruth
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
A pyranometer is an instrument used for measuring the
beam radiation.
global radiation.
bright sunshine period.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
All the thermocouples used for temperature measurement use dissimilar metal
strips
bars
wires
beads
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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