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Permeable spurs are best suitable for rivers which
1. Carry heavy suspended load
2. Carry large bed load, but light suspended load
3. Need permanent protection of dikes
4. Need attracting the river current, for providing deeper channles
5. Flow in upper hilly reaches

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Correct Answer - Option 1 : Carry heavy suspended load

Concept:

Spurs or Groynes are small structures/embankments either solid or permeable constructed using timber, sheet piling, dry vegetation, and stone rubble, etc. They usually projected into the stream and positioned normal to the river bank but sometimes they are inclined in the upstream or downstream direction.

Their main function is to control the river channel so that it may run along a specified course and protect the river banks from scouring by keeping the river course away from it.

Hence, Permeable spurs are best suitable for rivers which carry heavy suspended load.

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