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Chemical Engineering - Process Control and Instrumentation

Exercise : Process Control and Instrumentation - Section 1
31.
Which of the following measurements can be made by the measurement of emf ?
pH value
Degree of hydrolysis
Composition of complex ions
All (a), (b) & (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
A magnetic flowmeter is
based on the principle of Faraday's law.
capable of measuring the flow rate of slurries and electrolytes.
based on the linear relationship between the fluid flow rate and the induced voltage.
all (a), (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
Zirconia probe is used for the continuous measurment of __________ flue gases going out of the furnace.
oxygen in
carbon dioxide in
carbon monoxide in
temperature of
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
Strain gage pressure transducers are used to measure __________ pressures.
gage as well as vacuum
absolute as well as differential
both (a) and (b)
neither (a) nor (b)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
The transfer function for a PID controller is (where, τ i is the integral (reset) time and τD is the derivative time.)
Kc(1 + τis + τD ). s
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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