The significant observations which resulted from the pioneering research on prestressed concrete were _______

In words of Guyon, more than a technique prestress is a _______

Which of the following basic concept is involved in the analysis of prestressed concrete members?

In pre-tensioning system, after curing and hardening of concrete the reinforcement is set _______

The linear prestressing is mostly applicable for _______

The phenomena of reduction of stress in steel at a constant strain are known as _______

In reinforced concrete members the prestress is commonly introduced by _______

The method of prestressing the concrete after it attains its strength is known as _______