Soil Mechanics and Foundation Engineering

161. Pick up the clay soil group which does not swell when wet from the following:

1. Kaolinite group
2. Mite group
3. Vermiculite group
4. Montrorillonite group

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162. Pick up the cohesive soil from the following:

1. Red earth
2. Clay
3. Black cotton soil
4. Compacted ground

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163. Pick up the correct definition from the following:

1. The lateral pressure exerted by the soil when the retaining wall moves away from the back fill, is generally known as active earth pressure of the soil
2. The lateral pressure exerted by the soil when the retaining wail moves towards the soil, is generally known as 'Passive earth pressure of the soil
3. The lateral pressure exerted by the soil when the retaining wall has no movement relative to the back fill, is known as 'earth pressure at rest of the soil
4. All the above

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164. Pick up the correct statement applicable to plate load test

1. Width of the test pit for plate load test is made five times the width of the plate
2. At the centre of the test pit, a hole is dug out whose size is kept equal to the size of the test plate
3. Bottom level of the hole dug at the centre of the test pit, is kept at the level of the actual formation
4. All the above

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165. Pick up the correct statement from the following:

1. The dry density reduces by addition of water after attaining optimum moisture content
2. The line joining the peak of three moisture content graphs obtained by using three compactive energies, is called line of optimus
3. Well graded coarse grained soils can be compacted to a very high density as compared to fine grained soils
4. All the above

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166. Pick up the incorrect definition from the following:

1. Ratio of the compressive strength of unconfined undisturbed soil to that of remoulded soil, is known as the sensitivity of the soil sample
2. The rotation of soil particles into stable state while remoulding, is known as the thiostropy of soil
3. The water content at which a soil flows, is known plastic limit of the soil
4. None of these

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167. Pick up the incorrect statement from the following:

1. The smaller the size of the pores, the higher the water can rise above the water table
2. Below the water table, the pore water may be static
3. The hydrostatic pressure depends on the depth below the water level
4. None of these

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168. Pick up the in-correct statement from the following: The soils which contain montmorillonite minerals

1. Swell more when wet
2. Shrink more when dry
3. Possess high plasticity
4. Possess high coefficient of internal coefficient

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169. Pile foundations are generally preferred to for

1. Bridge foundations
2. Sky scrapper buildings
3. Residential buildings
4. Runways

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170. Plasticity index is defined as the range of water content between

1. Liquid and plastic limit
2. Plastic limit and semi solid limit
3. Semi-solid limit and liquid limit
4. Liquid limit and solid limit

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