B.TECH - Semester 6 geotechnical engineering Question Paper 2012 (may)

Practice authentic previous year university questions for better exam preparation.

Explain the effect of capillarity on effective stress.
How will you estimate settlement in normally consolidated clays ?
Explain the terms thixotropy and liquefaction.
Define factor of safety with respect to cohesion and angle of friction. PART-B
| No. of blows | 8 | 20 | 32 | 45 | | :--- | :---: | :---: | :---: | :---: | | Water content \% | 70 | 60.2 | 53.4 | 50 | Plastic limit may be taken as $25 \%$.
| Normal load (kN) | 1.5 | 2.5 | | :--- | :--- | :--- | | Shear load (kN) | 1.5 | 1.875 | The test was done under undrained condition. Find the apparent cohesion and angle of shearing resistance of the soil. If on the same soil, unconfined compression test is done, what value of cohesion will be th...
Write notes on : i) Stability number ii) Taylor's stability chart iii) Friction circle method iv) Method of slices.
602 : GEOTECHNICAL ENGINEERING - I (C) Time : 3 Hours ${ }^{\text {' }}$ Max. Marks : 100 Instructions : Answer all questions from Part A \& any one question from each Module in Part B. Graph sheets may be supplied on request.
Define uniformity coefficient and coefficient of curvature related to gradation of soil samples.
Distinguish between (i) Relative density and relative consistency ii) Flow index and toughness index.
Explain the significance of zero air voids line and theoretical maximum dry density.
Define critical hydraulic gradient and quicksand.