Q.

To estimate the magnitude of a flood with a return period of T years, Gumbel's distribution method requires the following data pertaining to annual flood series
i) mean value
ii) standard deviation
iii) length of record
iv) coefficient of skew
The correct answer is

A. (i) and (ii)
B. (i),(ii) and (iii)
C. (i), (ii) and (iv)
D. (i), (ii), (iii) and (iv)
Answer» B. (i),(ii) and (iii)
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