A. 1) constructing cutoff under upstream face B. 2) constructing drainage channels bet-ween the dam and its foundation C. 3) by pressure grouting in foundation D. The corret answer is?
A. Useful storage – valley storage B. Useful storage + surcharge storage C. Useful storage + surcharge storage + valley storage D. Useful storage + surcharge storage -valley storage
A. Minimum pool level and maximum pool level B. Minimum pool level and normal pool level C. Normal pool level and maximum pool level D. River bed and minimum pool level