Civil Engineering - Soil Mechanics and Foundation Engineering

11. 

Pick up the correct statement from the following :

A. To an agriculturist, soil is the substance existing on the earth's surface, which grows and develops plants
B. To a geologist, soil is the material in a relatively thin surface zone within which roots occur, and rest of the crust is termed as rock irrespective of hardness
C. To an engineer, soil is the unaggregated and uncemented deposits of minerals and organic particles covering the earth's crust
D. All the above.

Answer: Option D

Explanation:

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12. 

The ratio of settlement at any time 't' to the final settlement, is known as

A. co-efficient of consolidation
B. degree of consolidation
C. consolidation index
D. consolidation of undisturbed soil.

Answer: Option B

Explanation:

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13. 

The Westergaard analysis is used for

A. sandy soils
B. cohesive soils
C. stratified soils
D. clayey soils.

Answer: Option C

Explanation:

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14. 

If L and B are the length and breadth of a footing, e the eccentricity along the length and P and Q are the axial force and bearing capacity of the soil, then, to avoid tension,

A.
B.
C.
D.

Answer: Option A

Explanation:

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15. 

260 g of wet soil was taken in a pycnometer jar of weight 400 g in order to find the moisture content in the soil, with specific gravity of soil particles 2.75. The weight of soil and remaining water filled in pycnometer without air bubbles was 1415 g and the weight of pycnometer filled with water alone was 1275 g. The moisture content in the soil is

A. 24.2%
B. 18.2%
C. 53.8%
D. none of these.

Answer: Option B

Explanation:

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