The long span decks are fabricated by _______

The thermo electric pre stressing is also used in _______

The yield stress relieved in wires is about _______

The hydraulic jacks are the simplest and most widely used devices for providing prestress of _______

The method of chemical pre stressing is not suited for _______

In thermo electric pre stressing, the elongation is observed in case of _______

The Freyssinet system of post tensioning anchorages was developed in _______

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