The method of tensioning Magnel-Balton system involves _______

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

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

How many types of splicing arrangement are widely used in post tensioning systems?

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

The thermo electric pre stressing is also used in _______

The thermo electric pre stressing, initial stress in tendons ranges between _______

In thermo electric pre stressing, heating the bars is done to a temperature of _______