Silt ejector is provided ________.

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SSC JE Civil 10 Oct 2023 Shift 3 Official Paper-I
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  1. in the river adjacent to the head regulator
  2. in the river far off from the weir on the upstream side
  3. in the river on the downstream of the weir
  4. in the canal on the downstream of head regulator

Answer (Detailed Solution Below)

Option 4 : in the canal on the downstream of head regulator
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Concept:

Silt regulation works are required to preformed to control the erosion along the banks.

Two popular silt regulation works are as silt excluders and ejectors.

Silt excluders are constructed on the bed of the river, upstream of the head regulator.

While silt ejectors are constructed on the bed of the canal and a little distance downstream from the head regulator.

Silt excluders remove silt from the water before it enters the canal and silt ejectors extract the silt from the canal water after the silted water has travelled a certain distance in the off-take canal.

Silt ejectors also called silt extractors, and it extracts the silt from the canal water after the silted water has travelled a certain distance in the off-take canal.

These works are, therefore, constructed on the bed of the canal, and little distance downstream from the head regulator.

F1 N.M Madhu 02.04.20 D1

 

F1 N.M Madhu 02.04.20 D2

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