Soil Mechanics and Foundation
The flownet for an earthen dam with 30 m water depth consists of 25 potential drops and 5 flow channels. The coefficient of permeability of dam material is 0.03 mm/sec. The discharge per meter length of dam is

0.0045 m3/sec
0.00018 nrVsec
0.18 m3/sec
0.1125 m3/sec

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Soil Mechanics and Foundation
For a loose sand sample and a dense sand sample consolidated to the same effective stress

ultimate strength is same but peak strength of dense sand is greater than that of loose sand
ultimate strength is same but peak
ultimate strength is same and also peak strength is same
ultimate strength is different but peak strength is same

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