Concrete Technology and Design of Concrete Structures
Stress strain curve of high tensile steel

does not show definite yield point but yield point is defined by 0.1% proof stress
has a definite yield point
does not show definite yield point but yield point is defined by 0.2% proof stress
does not show definite yield point but yield point is defined by 2% proof stress,

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Concrete Technology and Design of Concrete Structures
Assertion A : The load factor for live load is greater than that for dead load.Reason R : The live loads are more uncertain than dead loads.Select your answer based on the coding system given below :

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

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