Quiz 2 Geotechnical Engineering BCE301

What is the important engineering parameter in shear strength?

• Internal friction angle

• Density

• Cohesion

• Volume

The un-drained test is carried out on sample of clay, silt, and peat to determine _____________

• Shear Strength of natural ground and Sensitivity

• Pore pressure

• None of the mentioned

• All of the mentioned

In an un-drained test on saturated clays, both σ1’ and σ3’ is independent of ____________

• Pore pressure

• Shear strength

• Cell pressure

• Effective pressure

Which of the following cannot be obtained by using un-drained test?

• Effective stress failure envelope

• Shear strength

• sensitivity

• All of the mentioned

The change in the pore pressure during an un-drained shear can be explained by ___________

• Lateral pressure

• Effective stress

• Pore pressure parameter

• Mohr’s circle

Negative pore pressure in clay or sand is developed due to __________

• Expansion on loading

• Over loading

• Loose structure

• Compaction

In unconfined compression test the value of σ2 and σ3 is equal to ____________

• 1

• 0

• 0.8

• ½

The unconfined compression test is derived from _____________

• Direct shear test

• Vane shear test

• Tri axial compression tests

• Drained test

The unconfined compression test is generally applicable to ____________

• Unsaturated clay

• Saturated clay

• Fine grained soil

• Coarse grained soil

In plastic failure, load corresponding to __________ strain is arbitrarily taken as the failure load.

• 10 %

• 5 %

• 20 %

• 50 %