Question

1. Which of the following statement is correct?
(a) The maximum stable slope in a coarse-grained soil (φ’= 39^o, in the absence of seepage, is half of 39^o
(b) Taylor’s method can be used to assess short term slope stability
(c) A saturated tension crack in the ground can stabilize slope
(d) The maximum stable slope in a coarse-grained soil (φ’= 39^o), in the presence of seepage, is 2 times of 39^o

2. Which below situation provides the largest bearing capacity for soil under a square footing (width 39m) placed 1m deep into the ground?
(a) When the water table is at the ground surface
(b) When the water table is at the base of the footing
(c) When the water table is at (1+ 39) depth from the ground surface
(d) When the water table is 39 above the ground surface

3. Which of the following statement is correct for a strip foundation (Length 39 m) placed on the ground surface?
(a) Shape factor is 1.0+ 39
(b) Depth factor is < 1.0
(c) Shape factor is 1.2
(d) Shape factor is 1.0

Answer 1

As we know the FOS of safety equal to 1 corresponds to maximum slope angle of the slope.