Concrete Technology and Design of Concrete Structures
Sinking of an intermediate support of a continuous beam i) reduces the negative moment at support ii) increases the negative moment at support iii) reduces the positive moment at center of span iv) increases the positive moment at center of span The correct answer is

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

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

High tensile steel is cheaper than 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
Elastic modulus of high tensile steel is nearly the same as that of mild steel

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Concrete Technology and Design of Concrete Structures
Select the incorrect statement...

For heavy loads and large spans in buildings or bridges, post-tensioning system is cheaper than pretensioning system
The loss of prestress is more in pre-tensioning system than in post-tensioning system.
Pretensioning system has greater certainty about its durability.
None of these

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