225.  The maximum possible value of dry density is referred to as
A. dry density
B. zero air voids
C. saturation dry density
D. all the above.

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226.  The expression(po) is used for 1 + wGs
A. dry density
B. bulk density
C. degree of saturation
D. optimum water content.

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227.  Pick up the correct statement from the following :
A. A maximum value of dry density is obtained at optimum water content
B. At low value of water content most soils tend to be stiff.
C. At high water content, the dry density decreases with an increase of water content.
D. All the above.

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228.  The zero atmospheric pressure is at
A. sea level
B. mean sea level
C. water table
D. both (c) and of the above.

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229.  Pick up the incorrect statement from the following :
A. The smaller the size of the pores, the higher the water can rise above the water table.
B. Below the water table, the pore water may be static. -
C. The hydrostatic pressure depends on the depth below the water level.
D. None of these.

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230.  Pick up the correct statement from the,following :
A. The permeability of the coarse-grained soils may be reduced by grouting. -
B. The process of injecting fluids (i.e. grouts) into the pores space of the soil, is called grouting.
C. The grouting increases the soil strength.
D. All the above.

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231.  The fluid generally used for grouting is
A. cement and water mix
B. clay suspension
C. sodium silicate
D. all the above.

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