Irrigation Engineering
In case of non-availability of space due to topography, the most suitable spillway is

chute spillway
straight drop spillway
ogee spillway
shaft spillway

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Irrigation Engineering
A counter berm is

A vertical benching provided on the outer edge of the bank
A horizontal benching provided on the inside slope
A horizontal benching provided on the outside slope
A vertical benching provided on the inner edge of the bank

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