LOADING
Question
The minimum recommended free-board for lined canals carrying discharge of more than 10 cumecs is:
A.
0.3 m
B.
0.6 m
C.
0.75 m
D.
1.2 m
Answer ( Option C)

0.75 m

Solution

Type of channel Discharge (m3/s) Free-board (m)
Main and branch canal > 10 0.75
Branch canal and major distributories 5 - 10 0.60
Major distributories 1 - 5 0.50
Minor distributories < 1 0.30

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