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

None of these
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.

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

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

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