match List – I (Regions) with List – II (Column specifications)

Question

The curve ABC is the Euler’s curve for stability of column. The horizontal line DEF is the strength limit. With reference to this figure match List – I (Regions) with List – II (Column specifications) and select the correct answer using the codes given below the lists

List – I                       

A. $R_{1}$                  B. $R_{2}$                        

C. $R_{3}$                  D.$R_{4}$                         

List – II

1. Long, stable

2. Short

3. Medium

4. Long, unstable

Codes:

     A       B         C         D

(a) 2        4          3          1

(b) 2        3          1          4

(c) 1        2          4          3

(d) 2       1          3          4