Let G be the specific gravity of soil solids, w the water content in the soil sample, γw the unit weight of water, and γd the dry unit weight of the soil. The equation for the zero air voids line in a compaction test plot is

\({{\rm{\gamma }}_{\rm{d}}} = \frac{{{\rm{G}}{{\rm{\gamma }}_{\rm{w}}}}}{{{\rm{Gw}}}}\)

\({{\rm{\gamma }}_{\rm{d}}} = \frac{{{\rm{G}}{{\rm{\gamma }}_{\rm{w}}}}}{{1 + {\rm{Gw}}}}\)

\({{\rm{\gamma }}_{\rm{d}}} = \frac{{{{\rm{G}}_{\rm{w}}}}}{{1 + {{\rm{\gamma }}_{\rm{w}}}}}\)

\({{\rm{\gamma }}_{\rm{d}}} = \frac{{{{\rm{G}}_{\rm{w}}}}}{{1 - {{\rm{\gamma }}_{\rm{w}}}}}\)

Let G be the specific gravity of soil solids, w the water content in t

1.	Let G be the specific gravity of soil solids, w the water content in the soil sample, γw the unit weight of water, and γd the dry unit weight of the soil. The equation for the zero air voids line in a compaction test plot is
A.	\({{\rm{\gamma }}_{\rm{d}}} = \frac{{{\rm{G}}{{\rm{\gamma }}_{\rm{w}}}}}{{1 + {\rm{Gw}}}}\)
B.	\({{\rm{\gamma }}_{\rm{d}}} = \frac{{{\rm{G}}{{\rm{\gamma }}_{\rm{w}}}}}{{{\rm{Gw}}}}\)
C.	\({{\rm{\gamma }}_{\rm{d}}} = \frac{{{{\rm{G}}_{\rm{w}}}}}{{1 + {{\rm{\gamma }}_{\rm{w}}}}}\)
D.	\({{\rm{\gamma }}_{\rm{d}}} = \frac{{{{\rm{G}}_{\rm{w}}}}}{{1 - {{\rm{\gamma }}_{\rm{w}}}}}\)
Answer» B. \({{\rm{\gamma }}_{\rm{d}}} = \frac{{{\rm{G}}{{\rm{\gamma }}_{\rm{w}}}}}{{{\rm{Gw}}}}\)

Discussion

No Comment Found

Related MCQs

A soil sample is having a specific gravity of 2.60 and void ratio 0.78, the moisture content in % required to fully saturate the soil at that void ratio would be
If e represents the void ratio of the soil and G is its specific gravity, the critical gradient is:
A saturated sand sample has a dry unit weight of 18 kN/m3 and a specific gravity of 2.65. If γw = 9.81 kN/m3, then, what is the water content of the soil?
A project engineer receives a laboratory report of a sample of soil having a moist unit weight of soil is 20.5 KN/m3, water content available is 25 % and the specific gravity of the solid of the soil is 3.35. Find the dry unit weight of the soil.
A soil sample has a porosity of 40% and the specific gravity of solid is 2.70. If the soil is 50% saturated, the unit weight will be nearly
For a given soil mass with water content of 15 % the void ratio is 0.55 and specific gravity of soil particles is 2.6. The degree of saturation of soil is
Consider the following effects as indicative of complete saturation of a soil sample:1. Pore water pressure is positive.2. Volume of water to volume of voids is equal to 1.3. Relative density is equal to 1.Which of the above statements are correct?
A soil sample taken from the field has specific gravity of 2.5 and void ratio of 0.75. The water content required to fully saturate the soil at that void ratio is:
Consider the following statements:1. Knowledge about moisture content is necessary to determine permeability.2. Some typical marine clay may have moisture content as high as 400%.3. Sand bath method of moisture content determination is not suitable for soils containing organic matter.Which of the above statements an correct?
A unit phase diagram is normally divided into three parts. What does the top, middle and bottom part represent?

Let G be the specific gravity of soil solids, w the water content in the soil sample, γw the unit weight of water, and γd the dry unit weight of the soil. The equation for the zero air voids line in a compaction test plot is

Discussion

No Comment Found

Related MCQs

Reply to Comment