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

The thermo electric pre stressing is also used in _______

The yield stress relieved in wires is about _______

The suitability of post tensioning is good for _______

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

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

The applied force should be measured accurately in hydraulic devices while?

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