Flexible type retaining wall is:

a$.$ Counterfort wall

b$.$ Anchored type wall

c$.$ Buttress wall

d$.$ Cantilevered rigid wall

Which of the following failure mode is not applicable for flexible retaining walls?

a$.$ Deep$-$seated Failure

b$.$ Sliding failure

c$.$ Rotational Failure

d$.$ Bending failure

Which of below factor does not impact lateral earth pressure co$-$efficient at rest of

retaining wall:

a$.$ Wall friction

b$.$ Soil friction angle

c$.$ Soil density

d$.$ Water table

Earthquakes will induce slope failure:

a$.$ Under drained condition

b$.$ Under Undrained condition

c$.$ Under partially drained condition

d$.$ None of the above

Which of the following statement is incorrect?

a$.$ The maximum stable slope in a coarse$-$grained soil $({}^{\text{'}}=20),$ in the absence of

seepage, is $20$

b$.$ Taylor's method can be used to assess long term slope stability

c$.$ Slopes with clay should be assessed using both short$-$term and long$-$term

loading conditions

d$.$ The maximum stable slope in a coarse$-$grained soil $({}^{\text{'}}=20),$ in the presence of

seepage, is half of $20$