Civil Engineering - Soil Mechanics and Foundation Engineering
Exercise :: Soil Mechanics and Foundation Engineering - Section 5
| 26. |
Pick up the correct statement from the following: |
| A. |
The range of water content between the liquid limit and plastic limit, is called plasticity index. | | B. |
The ratio of the liquid limit minus the natural water content to the plasticity index of soils, is called consistency index | | C. |
The ratio of natural water content minus its plastic limit to its plasticity index is called liquidity index | | D. |
The ratio between plasticity index and flow index (i.e. slope of flow curve in case of liquid limit), is called toughness index | | E. |
All the above. |
Answer: Option E
Explanation:
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| 27. |
'Talus' is the soil transported by |
| A. |
wind | | B. |
water | | C. |
glacier | | D. |
gravitational force. |
Answer: Option D
Explanation:
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| 28. |
A triaxial shear test is prefered to direct shear test, because |
| A. |
it can be performed under all three driange conditions with complete control | | B. |
precise measurement of pore pressure and change in volume during test, is not posible | | C. |
stress distribution on the failure plane, is non uniform | | D. |
none of these. |
Answer: Option A
Explanation:
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| 29. |
Pick up the correct statement from the following: |
| A. |
When stress decreases, void, ratio decreases | | B. |
When stress decreases, coefficient of permeability decreases | | C. |
When stress decreases, coefficient of volume change decreases | | D. |
When stress decreases void ratio, co-effi-cients of per-meability and volume change decrease. |
Answer: Option D
Explanation:
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| 30. |
Chemical weathering of soil is caused due to |
| A. |
oxidation | | B. |
carbonation | | C. |
hydration | | D. |
leaching | | E. |
all the above. |
Answer: Option E
Explanation:
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