b) 
A sample of moist soil has a mass of 18.18kg and occupies a total volume of 0.009 m^{3}. When dried in an oven, the dry mass is 16.13kg. The specific gravity of the soil solids is 2.70. (Acceleration of gravity, g = 9.81 m/sec^{2}.) Determine: 
Wet density 

Dry unit weight 

Void ratio 

Water content 

Degree of saturation 

c) 
A 4.5 m deep deposit of silty sand lies above a 6 m deep deposit of gravel. The gravel is underlain by a deep layer of rock. The ground water table is found 2.3m below the ground surface. The soil properties are: ρ_{bulk} sand above GWT = 1750 kgm3 ρ_{sat} sand below GWT = 2010 kgm3 ρ_{sat} gravel = 2160 kgm3 Calculate vertical total stress, pore water pressure and vertical effective stress at the depths of 0, 2.3, 4.5 and 10.5 m. 
The first part of question involves basics of soil mechanics formula and their relationship such as void ratio, dry density, bulk density, water content, and degree of saturation. The second part of question involves basics of stress relations such as total vertical stress, pore pressure and effective vertical stresses,
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