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Civil Engineering Objective Questions { Soil Mechanics And Foundation Engineering }



29. Degree of saturation of a natural soil deposit having water content 15%, specific gravity 2.50 and void ratio 0.05, is
A.50%
B.. 60%
C.75%
D. 80%.

30. A soil has bulk density 2.30 g/cm3 and water content 15 per cent, the dry density of the sample, is
A. 1.0 Wcm2
B. 1.5 g/cm3
C. 2.0 g/cm3
D. 2.5 g/cm3.

31. Accurate determination of water content, is made by
A. calcium carbide method
B. sand bath method
C. alcohol method
D. oven-drying method.

32.  Determination of water content of a soil sample suspected to contain gypsum is made by drying the sample for longer period at a temperature not more than
A. 60?C
B. 80?C
C. 100?C
D. 110?C.

33. A pycnometer is used to determine
A. voids ratio.
B. dry density
C. water content
D. density index.

34.  Pick up the correct statement from the following :
A. The void ratio in soils is defined as the ratio of the volume of voids to the volume of solids
B. The porosity of a soil is defined as the ratio of the volume of voids to the gross volume of the soil
C. The bulk density of a soil is defined as the unit weight of the soil
D. All the above.

35.  The specific gravity of sands is approximately
A.1.6
B.2
C.2.2
D. 2.6.

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