Soil Mechanics and Foundation Engineering Questions

• Water content of a soil sample is the difference of the weight of the given sample at the given temperature and the weight determined after drying it for 24 hours at temperature ranging from
• If σ0' and σ' represent initial and increased pressure ; e0 and e void ratios corresponding to initial and increased pressure ; and C0 the compression index (dimensionless), then, the virgin compression curve as expressed by Terzaghi empirical formula is
• The soil which contains finest grain particles, is
• According to the Indian Standards the specific gravity is the ratio of the unit weight of soil solids to that of water at a temperature of
• Number of piles required to support a column, is
• 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
• If the specific gravity of a soil particle of 0.05 cm diameter is 2.67, its terminal velocity while settling in distilled water of viscosity, 0.01 poise, is
• For determining the moisture content of a soil sample, the following data is available Weight of container = 260 g, Weight of soil sample and = 320 g container, Weight of soil sample (dried) and = 310 g container. The moisture content of the soil sample, is
• If L and B are the length and breadth of a footing, e the eccentricity along the length and P and Q are the axial force and bearing capacity of the soil, then, to avoid tension,
• The direct shear test suffers from the following disadvantage:
• The critical exist gradient of seepage water in soils, is
• The general relationship between specific gravity (G), weight of water (γω), degree of saturation ( S r ), void ratio (e) and bulk density (γ), is
• If C is cohesion, F is factor of safety, γ is unit weight of soil and H is the maximum height of embankment, the stability number, is
• A phreatic line is defined as the line within a dam section below which there are
• The compressibility of clays, is caused due to:
• Pick up the correct statement from the following :
• For determing the specific gravity of soil solids, using a pycnometer of 500 cc., the following data is available : Weight of dry empty pycnometer = 125 g Weight of dried soil and pycnometer = 500 g Weight of dried soil and distilled = 850 g water filled in pycnometer up to top The specific gravity of soil soilds, is
• The equation τ = C + σ tan φ is given by
• For a homogeneous earth dam 50 m high having 2 m free broad, a flow net was constructed and the results were : Number of potential drops = 2.4 Number of flow channels = 0.4. If coefficiency of permeability of the dam mateiral is 3 x 10-3 cm3/sec, the discharge per metre length of dam, is
• W is the weight of soil having a moisture content ω. If V is the volume of proctor's mould, the dry density of the soil is