Which of the following thermocouples has the least temperature measurement range ?
Correct answer: D. Copper-constantan
- A. Iron-constantan
- B. Chromel-alumel
- C. Platinum-platinum/rhodium
- D. Copper-constantan
Explanation
Copper-constantan thermocouples have the narrowest useful range among these choices, typically extending only to roughly 350 to 400°C. Chromel-alumel, iron-constantan, and platinum-based thermocouples withstand higher temperatures.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Process Control and Instrumentation
254 free Process Control and Instrumentation MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Process Control and Instrumentation questions
Radiation thermometer cannot measure the temperature ___________________?
The transfer function for an ideal proportional plus reset controller (reset time T) is_______________?
A pyranometer is an instrument used for measuring the___________________?
Platinum resistance thermometer can be used upto antimony point which is ____________ °C, and is the temperature of equilibrium between solid antimony & liquid antimony at normal atmospheric pressure?
Temperature of _____________ cannot be measured by an optical or radiation pyrometer?
Mercury thermometer can be used to measure the temperature upto ____________ °C?