SSC JE Civil Engineering 2018 Set 5 Solved Paper

Question : 132 of 200

Marks: +1, -0

What is the value of active earth pressure coefficient for the soil having an internal angle of friction of 30 degree.

Solution:

k_a={1-\sinϕ}/{1+\sinϕ}

={1-\sin30°}/{1+\sin30°}

0.5 /1.5= 1/3

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