The obstruction or a barrier built across the stream or river is called _________

______ is the difference of Level between full reservoir level and top of the dam.

_____________ sections allow the surplus discharge to flow in dams.

If the minimum stress developed is negative, then the nature of stress is _______

_________ failures contribute 40% to earthen dams.

Field channels are also known as __

The minimum standard height for a construction joint is about ____

The pressure intensity of water at free surface is ____