Nickel percentage in invar which is an iron-nickel alloy, and is used as a thermocouple material is __________________?
Correct answer: B. 36
- A. 12
- B. 36
- C. 54
- D. 68
Explanation
Invar is an iron-nickel alloy containing approximately 36% nickel, which gives it an exceptionally low coefficient of thermal expansion. The other percentages do not represent standard Invar composition.
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
Conversion formula for converting amplitude ratio (AR) into decibels is ________________?
Temperature of molten pig iron (1450°C) and molten slag (1500°C) flowing out of a blast furnace is measured by a/an_______________?
Which of the following is never used as an element of industrial resistance thermometer ?
Stroboscope is used for the measurement of _________________?
Response of a linear control system for a change in set point is called __________________?
Which of the following is not a composition measuring instrument ?