Soil Mechanics and Foundation Sheet 20

In case of coarse grained sand having high permeability and low plasticity, 95% of consolidation occurs within...... after application of load.

The time factor corresponding to 25% degree of consolidation is given by

The relation between coefficient of consolidation ($c_v$), time factor $\left(T_v\right)$, drainage path (d) and time (t) is given by

The ratio of settlement at any time (t) to the final settlement is known as

The relation between coefficient of consolidation $\left(c_v\right)$, coefficient of volume change $\left(m_v\right)$ and coefficient of permeability (k) is given by

The time factor for a clay layer is

The degree of consolidation is proportional directly

The rate of consolidation...... with the increase in temperature.

The coefficient of consolidation is used for evaluating

The decrease in voids ratio per unit increase of pressure is called

As per converse Labarre formula, group efficiency of friction piles is given by:

where

m  = number of columns

n   = number of rows

$\alpha = {\tan }^{-1}(d/s)(in degree)$

d   = diameter of pile

s   = c/c spacing of pile

In care of free over damped vibration,

The natural frequency of a vibrating foundation system

i)   increases as the square root of the spring stiffness

ii)  decreases with the square root of the spring stiffiness

iii)  increases as the square root of the mass of the body

iv)  decreases with the square root of the mass of the body

of these statements:

The soils most susceptible to liquefaction are

The unit weight of a soil at zero air voids depends on:

A soil having particles of nearly the same size is known as:

Select the incorrect statement

In the plate loading test for determining the bearing capacity of soil, the size of square bearing plate should be

Terzaghi's bearing capacity factors $N_c, N_q and N_y$ are functions of

Terzaghi's general bearing capacity formula for a strip footing

$\left(C N_C+y D N_q+0.5 y N_{y}B\right)$ gives

where C = unit cohesion

          y = unit weight of soil

          D = depth of foundation

          B = width of foundation

$Nc,  Answer. 1 safe bearing capacity  2 net safe bearing capacity 3 ultimate bearing capacity 4 net ultimate bearing capaicty Answer: 3 Explanation: View Answer Discuss in Forum Workspace Report Question Pallet 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time Left - Workspace : Name: Email: Description: Submit Report : Name: Email: Remarks: Submit $