Which type of weir is suitable for hard clay and consolidated gravel – McqOptions

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1.	Which type of weir is suitable for hard clay and consolidated gravel foundations?
A.	Gravity weir
B.	Non-gravity weir
C.	Masonry weir with a vertical drop
D.	Rock-fill weirs with sloping aprons
Answer» D. Rock-fill weirs with sloping aprons

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