Soil Mechanics and Foundation
Terzaghi’s theory of one dimensional consolidation assumes

Soil is homogeneous and fully saturated
Water and soil particles are incompressible
All listed here
Deformation of the soil, is entirely due to change in volume

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Soil Mechanics and Foundation
In a triaxial compression test when drainage is allowed during the first stage (i. e. application of cell pressure) only and not during the second stage (i.e. application of deviator stress at constant cell pressure), the test is known as

consolidated drained test
unconsolidated undrained test
unconsolidated drained test
consolidated undrained test

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Soil Mechanics and Foundation
A cylindrical specimen of saturated soil failed under an axial vertical stress of 100kN/m2 when it was laterally unconfmed. The failure plane was inclined to the horizontal plane at an angle of 45°. The values of cohesion and angle of internal friction for the soil are respectively

0.05 N/mm² and 0°
0.05 N/mm² and 45°
0.2 N/mm² and 0°
0.5 N/mm² and 30°

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