Concrete Technology and Design of Concrete Structures
Select the correct statement for

Elastic modulus of high tensile steel is nearly the same as that of mild steel
Elastic modulus of high tensile steel is more than that of mild steel
Carbon percentage in high carbon steel is less than that in mild steel
High tensile steel is cheaper than mild steel

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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 2% proof stress,
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 0.1% proof stress
has a definite yield point

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Concrete Technology and Design of Concrete Structures
Examine the following statements :
i) Factor of safety for steel should be based on its yield stress,
ii) Factor of safety for steel should be based on its ultimate stress,
iii) Factor of safety for concrete should be based on its yield stress,
iv) Factor of safety for concrete should be based on its ultimate stress.
The correct statements are

(i) and (iii)
(ii) and (iii)
(ii) and (iv)
(i) and (iv)

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