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Question

Match List I with List II and select the correct answer using the codes given below the lists: 

         

A

Moment of inertia 

1

Tensile stress 

B

Elongation 

2

Modulus of rupture 

C

Neutral axis 

3

Zero shear stress 

D

Top fibre stress 

4

Zero longitudinal stress 

          Codes: 

                     B     C      

A.
                          
B.
                  4         
C.
         4          1         
D.
                          
Answer ( Option D)

                          

Solution

Modulus of rupture : In case of bending, maximum normal stress  s is called modulus of rupture
where Mu is the ultimate moment that causes failure in the member.
Hence modulus of rupture is related to moment of inertia

At neutral axis longitudinal stress is zero.

At outermost surface shear stress is zero so at top fibre shear stress is zero

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