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Chemical Engineering - Process Control and Instrumentation

Exercise : Process Control and Instrumentation - Section 3
41.
Which of the following is not a mechanical pressure sensing element ?
Bellows
Diaphragm
Bourdon tube
U-tube
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
__________ are analysed using a polarograph.
Isotonic solutions
Solids
Liquids
Gases
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
Which of the following judges the accuracy of an instrument ?
Dead zone
Drift
Static error
None of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
On-off controllers are normally used for
low loads
temperature changes
flow rate changes
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
Magnetic flowmeters are generally not used for the velocity/flow measurement of hydrocarbons due to their
low thermal conductivity.
low electrical conductivity.
high viscosity index.
low flash point.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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