50 gm of oven dried soil of five sizes shown in the table is taken for hydrometer analysis and 1000 cc of suspension is prepared and filled in a jar up to 30 cm height.Particle size (mm)Weight (gm)0·0660·05200·03150·01550·0044If the specific gravity of soil solids is 2.7 and viscosity of soil water suspension is 1× 10-6 kN-sec/m2, the time required for all the particles to settle to the bottom of the jar is

50 gm of oven dried soil of five sizes shown in the table is taken for

1.	50 gm of oven dried soil of five sizes shown in the table is taken for hydrometer analysis and 1000 cc of suspension is prepared and filled in a jar up to 30 cm height.Particle size (mm)Weight (gm)0·0660·05200·03150·01550·0044If the specific gravity of soil solids is 2.7 and viscosity of soil water suspension is 1× 10-6 kN-sec/m2, the time required for all the particles to settle to the bottom of the jar is
A.	2 hr 16 min
B.	5 hr 37 min
C.	11 hr 55 min
D.	23 hr 50 min
Answer» C. 11 hr 55 min

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