TGPSC HMWSSB Manager 2015 Paper 2 · Question 60
Question 60 of the TSPSC Manager (Engineering), HMWSSB, 2015: Paper 2 (Civil Engineering) (1 November 2015). Try it first, then open the answer and explanation.
Lacey's equations can be used for the design of
- Unlined channels only
- Lined channels only
- Both lined and unlined channels
- Neither lined nor unlined channels
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Answer: (1) Unlined channels only
Lacey's regime theory applies to unlined alluvial channels that adjust their own width, depth and slope to the silt load until they reach regime; lined channels have a fixed section and are designed with Manning's formula.