1.

A_CIRCULAR_SEWER_HAVING_0.4M_DIAMETER_IS_FLOWING_WITH_VELOCITY_2M/SEC._IF_THE_GRADIENT_OF_SEWER_IS_1_IN_90._FIND_THE_VALUE_OF_CHEZY‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖ¬•S_COEFFICIENT??$#

A. 10
B. 30
C. 60
D. 40
Answer» E.


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