AE & JE CE Quiz Soil Mechanics Boster Quiz -2

Which one of the following shows time factor (approximate), for 50% degree of consolidation?

The angle of repose of a soil is the maximum angle which the outer face of the soil mass makes

Which one of the following represents the measure of particle size range?

If u1 / u2 = 2.5 and 1 - u1 / 1 - u2 = 0.657, then the value of k1 / k2 will be

Disadvantages of direct shear test:

1. Drainage condition cannot be controlled.

2. Pore water pressure cannot be measured.

3. unsuitable for freely draining soil.

Which of these statements is/are correct?

In a Soil deposit of three layers of equal thickness, the permeabilities of first, second and third layers are in the ratio 1:2:3 . The ratio of average permeability in horizontal direction (K_h) to that in the vertical direction (K_v) will be:

In a falling head permeability test, the time taken for head to fall from 27 cm to 3 cm is 10 minutes, if the test is repeated with the same initial head i.e. 27 cm then what time would it take for head to fall to 9 cm?

Given for a sample of a river sand:

Void ratio at the densest state = 0.30

Void ratio at the loosest state = 1.30

Which one of the following correctly represents the relative density of a sample prepared with a void ratio of 1?

Negative skin friction occurs when :