In the case of tapered poles with a reduced cross section the effective prestressing force should be ______

The spherical domes are supported by a ring beam at the ______

Prestressed concrete although it is water tight, it is not ______

The percentage of reinforcement for prestressed concrete pipes varies between ______

The appearance of prestressed concrete poles is ______

The pretressed concrete pipes are ideally suited for a pressure range of ______

The prominent prestressed sleepers which have been adopted by railways of various countries is?

When a sliding joint is made what is interposed at the junction of wall and base?