Building Construction
An arch may fail due to

All listed here
Uneven settlement of abutments
Sliding of voussoirs
Crushing of the material

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Building Construction
Assertion A : Shishum is used for decorative woodwork.Reason R : Shishum can be polished to an excellent finish.Select your answer according to the coding system given below:

A is false but R is true
A is true but R is false
Both A and R is true but R is not the correct explanation of A
Both A and R is true and R is the correct explanation of A

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