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

The concrete dams are constructed using which?

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

The method of tensioning Magnel-Balton system involves _______

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

The basic chemical substance used for pre stressing forces in concrete member is _______

The long span decks are fabricated by _______

The drawback of Lee-McCall system is it cannot use _______