The yield stress relieved in wires is about _______

In pre tensioning system, type of prestressing tendon used is _______

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

The thermo electric pre stressing is also used in _______

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

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

In post tensioning, the concrete units are cast by _______

The suitability of post tensioning is good for _______