The tensioning of oval section ribbed wires with an ultimate tensile strength was adopted in _______

Hoyer’s system of pretensioning can be done for beams.

The commonly used mechanical devices used in the following statement.

The tensile stresses developed in steel by the expansion of concrete are about _______

When the concrete attains sufficient strength, which elements are released?

The method of tensioning Magnel-Balton system involves _______

Hoyer’s system of pre tensioning is generally adopted for _______

The chemical pre stressing is generally suited for elements like _______