Chemical Engineering - Process Control and Instrumentation - Discussion

Discussion Forum : Process Control and Instrumentation - Section 7 (Q.No. 2)
2.
Which of the following instruments is not used for measuring sub-zero (<0°) temperatures ?
Platinum resistance thermometer
Mercury in glass thermometer
Vapor pressure thermometer
Radiation pyrometer
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
1 comments Page 1 of 1.

Jinu B Mukkadan said:   3 weeks ago
Radiation pyrometer works on princuple of radiation, which is effective at temperatures > 500 ° C.

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