Which one of the following is the basic assumption involved in designing of prestressed concrete members?

The prestressing of concrete member is carried out to reduce _______

The length of the prestressing tendon between the end of the member and the point where the steel attains its stress is …

The phenomena of drying process of contraction concrete refer to _______

In 1888, manufacturing of slabs and small beams using embedded tensioned wires in concrete was introduced by _______

In circular prestressing members, the tendons are supplied in form of _______

In 1907, the losses of prestress due to elastic shortening of concrete was developed by _______

In reinforced concrete members, the prestress commonly introduced is _______