The yield stress relieved in wires is about _______

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

The chemical pre stressing is generally suited for elements like _______

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

In post tensioning, the concrete units are cast by _______

In Gifford-Udall system, the number of methods for prestressing members is?

The expansion of the concrete is restrained by _______

In Lee-McCall system, the prestressing tendons are in the form of _______