Q1
Which of the following is universally employed as the low expansion metal in the bimetallic thermometer, which is an iron-nickel alloy containing 36% nickel and has very low co-efficient of expansion (l/20th of ordinary metals)?
A.
Invar
AnswerB.
Constantan
C.
Chromel
D.
Alumel
Answer: Option A
Solution
Answer: Option A
No explanation is given for this question Let's Discuss on Board