Question

ANSWER ALL QUESO uestion 1: (10 marks) tate the correct answer (True or False) in your ANSWER BOOK along with the Question number, lave all your answers for Question 1 at one place 1 The angle of internal friction of normally consolidated clay determined fromTF consolidated drained triaxial shear tests is higher in comparison to the angle of internal friction value determined from consolidated undrained tests without pore- water pressure measurements. 42%) is the same t F At liquid limit value the shear strength ofsity clay as the shear strength of a clayey silt (liquid limit liquid limit 255%). 2 3 The pore-water pressure can be either pegative or positive in an over consolidated T clay depending on the applied normal stress. angle of internal friction of an expansive clay tested under residual conditionsT 4 The F 5 The undrained cohesion value, ca determined from an unconfined compression test T F is lower than the peak friction value on a saturated clayey sample is approximately the same as the cu value determined from an unconsolidated undrained test. 6 Vane shear test can be used to determine the shear strength of soft saturated clays under drained loading conditions. parameters, c , and φ, of a saturated clay. conditions to estimate the long term stability 7Direct shear test apparatus can be used for determining the effective shear strength T gth parameters have to be determined under consolidated drained loading earth dam T F of a homogenous constructed using homogeneous clay 9 Sand typically liquefies when the hydraulic gradient reaches critical condition 0. A well graded sand has a lower angle of friction value compared to a gap graded T soil

Answer 1