Civil Engineering - Building Materials - Discussion
Discussion Forum : Building Materials - Section 3 (Q.No. 27)
27.
The type of steel used for precision levelling staff, is
Discussion:
3 comments Page 1 of 1.
Inayat Ullah khan said:
5 years ago
Due to low coefficient of thermal expansion, it is mostly used for precision levelling staff.
Peter Parker said:
1 decade ago
Invar has less expasion property due to change in temperature.
(2)
Hasnain said:
3 years ago
Yes, you are right, Thanks @Inayat Ullah Khan.
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