The transfer of prestress of concrete is achieved by _______

The use of bar tendons with threaded anchorages reduces the possibility of _______

The Hoyer’s system of prestressing proves to be economical for _______

In Hoyer’s system the projection of plugs left in concrete exceeds beyond _______

The Freyssinet system of prestressing involves the arrangement of wires of number?

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

The method of chemical pre stressing is not suited for _______

The concrete dams are constructed using which?