The commonly used mechanical devices used in the following statement.

Which of the following is a disadvantage of Freyssinet system?

The suitability of post tensioning is good for _______

The expansion of the concrete is restrained by _______

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

The method of chemical pre stressing is not suited for _______

The cables are formed by arrangement of wires or strands in _______

The linear expansion of the cement in chemical pre stressing is about _______