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UPSC Civil Service Exam Questions - Engineering

Q1:

What is the correct sequence of the following metals in the decreasing order of their Poission's ratio ?
(a) Aluminium
(b) Cast iron
(c) Steel
Select the correct answer using the code given below :

A 1 - 2 - 3

B 2 - 1 - 3

C 1 - 3 - 2

D 3 - 1 - 2

ANS:C - 1 - 3 - 2

Steel : 0.27-0.30.
Cast iron : 0.21-0.26.
Aluminium : 0.32-0.36.