In Francis formula, the effective length is ‚Äö√Ñ√∂‚àö� – McqOptions

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1.	In Francis formula, the effective length is ‚Äö√Ñ√∂‚àö√ë‚àö¬®$
A.	L-0.2H
B.	L-0.4H
C.	L-0.3H
D.	L-0.1H
Answer» B. L-0.4H

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