What is the normal percentage of rhodium in platinum + rhodium element used in the thermocouple ?
Correct answer: C. 13
- A. 0.1
- B. 3
- C. 13
- D. 29
Explanation
The platinum-rhodium thermocouple composition commonly listed in this classification is platinum with about 13% rhodium, corresponding to the Pt-13% Rh element. The exact percentage varies among thermocouple types, but 13% matches the stated options.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
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.
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
Pick out the most suitable instrument for measuring temperature in the range of-40 to 425°C ?
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______________?
Thermal wells are used in the temperature measurement to____________________?
Cascade control means _______________?
Which of the following thermocouples has the widest temperature measurement range ?
The thermal emf-temperature relationship of most thermocouples is_________________?