Soil Mechanics and Foundation Sheet 35
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1) Question.
The initial and final void ratios of clay sample in a consolidation test are 1 and 0.5, respectively. If the initial thickness of the sample is 2.4 cm. then its final thickness will be
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2) Question.
A dry sand specimen is put through a triaxial test. The cell pressure is 50 kPa and the deviator stress at failure is 100 kPa. The angle of internal friction for the sand specimen is
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3) Question.
If the actual observed value of standard penetration resistance, N, is greater than 15 in a fine sand layer below water table, then the equivalent penetration resistance will be
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4) Question.
The changes that take place during the process of consolidation of a saturated clay would include
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5) Question.
Given that for a soil deposit,
Answer.6) Question.In a cohesionless soil deposit having a unit weight of and an angle of internal friction of , the active and passive lateral earth pressure intensities at a depth of 10 m will, respectively, be
Answer.7) Question.A soil has a liquid limit of 45% and lies above the A-line when plotted on a plasticity chart. The group symbol of the soil as per IS Soil Classification is
Answer.8) Question.Consider the following statements in the context of aeolian soils:
1. The soil has low density and low compressibility.
2. The soil is deposited by wind.
3. The soil has large permeability.
Of these statements
Answer.9) Question.A rectangular footing 1 m x 2 m is placed at a depth 2 m in a saturated clay behaving an unconfined compressive strength of . Accoridng to Skempton, the net ultimate bearing capacity is
Answer.10) Question.A clay layer 5 m thich in field takes 300 days to attain 50% consolidation with condition of double drainage. If the same clay layer is underlain by hard rock then the time taken to attain 50% consolidation will be
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