Prestressed concrete members should be compacted by which type of vibration?

For heavily reinforced concrete members the nominal maximum size of aggregates shall be ________

When vibrators are used for horizontal and vertical operation, the spacing should ________

The circular shape was planned at Bhima aqueduct reduced ________

Prestressed concrete has more or less replaced ________

There is no single form of design which would always be most?

The sub structure in every structure is known as ________

The thickness of concrete in the shell is in the range of ________