The relations proposed by Marshall for bond stress are given as ________

The surface of drawn round wires is roughened by ______

The magnitude of bond stresses is developed between ________

The transmission length required to attain uniform stress distribution in prestress member is acquired through ______

In case of designing the formwork, the use of cab cables is ________

The expression for transmission length based on wedge action is given as?

Which is more efficient than mat reinforcement?

The stress in a steel wire gradually increases from zero to the ________