Irrigation Engineering

181) The shape of a lined canal recommended by ISI is

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triangular

182) An earthen embankment built on each side of a river for some distance as a flood control measure is called

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dyke

183) The Froude number may also be defined as the ratio of the velocity of flow in the channel to

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the velocity of wave celerity in shallow depths

184) The power which is available on and above the firm power is known as

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secondary power

185) In a homogeneous earth dam without d/s horizontal filter, portion of the d/ s face through which seepage flow comes out is

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neither a stream line nor an equipotential line

186) The critical hydraulic gradient, according to Khoslas theory, in alluvial soils is approximately

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1.0

187) The slope of the sides of a cippoletti weir is

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1H: 4V

188) The proportional weir is also called as

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Sutro weir

189) A weir in which the tail water level is less than the crest level is called

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free weir

190) A weir in which the tail water level is more than the crest level is called

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submerged weir

Subject Notes

Objective Box

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