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Soil Mechanics MCQs with Answers & Solutions | Civexa

Subjects / Soil Mechanics / MCQs

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Soil Mechanics MCQs with answers

268 free questions — page 1 of 6. Open one to see the correct answer and the full solution.

The most suitable type of equipment for compacting of cohesive soils isCompaction
Which of the following clay minerals has the highest cation exchange capacity?Clay Mineralogy
Flow net is graphical solution of which of the following equation?Seepage Analysis
Ordinary method of slices satisfies which equilibrium condition?Stability of Slopes
The optimum lime content for stabilizing a problematic clayey soil is typically determined based onSoil Stabilization
Effective particle size based on particle size distribution data isSoil Classification
For estimating primary consolidation of a NC clay slope, which of the following curves should be used?Consolidation
Darcy’s law is assumed to be valid for flow of water through soil when Reynold’s number isPermeability
The soil fabric on the wet side of optimum isCompaction
Kneading type compaction is most effective forCompaction
The core cutter method for estimating in-situ soil density will not be suitable for which type of soil?Index Properties
In a falling head permeability test, if t1 time is needed for head of water to drop from h1 to √(h1h2), then how much time is needed for head of…Permeability
If saturated unit weight of a sand deposit is 19.62 kN/m³, then the critical hydraulic gradient isSeepage Analysis
If 0.1 m head loss takes place while water flows in upward direction through 1 m of the soil layer, then the seepage force per volume isSeepage Analysis
If a sand has Cc between 1 and 3, which of the following is required for it to be classified as SW?Soil Classification
Constrained modulus of a soil can be estimated fromConsolidation
The field compression curve is predicted from the laboratory compression curve usingConsolidation
The vibratory roller is most effective for compactingCompaction
The pore water pressure at a point on the phreatic surface isSeepage Analysis
Compression index is obtained from which compression curve?Consolidation
Increase in excess pore water pressure during shearing phase of CU test is expected to occur inShear Strength
If superficial velocity of flow of water through a porous media is 0.01 cm/s and void ratio is 0.5, then the seepage velocity isPermeability
If a soil has 67% passing 75 micron sieve, LL of 20, PL of 15, then the soil will be classified asSoil Classification
Which of the soil classification symbols is invalid?Soil Classification
A soil with LL of 50 will be classified as silt, if its PI is less thanSoil Classification
Which of the following methods satisfies both force and moment equilibrium?Stability of Slopes
If an infinite slope in sand has slope angle of 35 degree and angle of internal friction is 32 degree, then the FOS against sliding is expected to beStability of Slopes
A drained triaxial test was performed on a representative sand specimen with σ3′ = 100 kPa and σ1′/σ3′ = 3 at failure. The effective friction angle isShear Strength
The critical slip circle in a slope of saturated clay will always be a toe circle if slope angle isStability of Slopes
Constant head permeability test is most suitable for which of the following type of soil?Permeability
Dispersing agent correction in hydrometer analysis is alwaysIndex Properties
Consider the following statements regarding consolidation of soils 1. Consolidation is a time-dependent process involving the expulsion of pore water…Consolidation
Quick Sand condition occurs in a soil mass whenSeepage Analysis
Geosynthetics used for the purpose of filtration must allow water to pass across the plane whileGeosynthetics
According to the Indian Standard Soil Classification System (ISSCS), a soil represented by the symbol 'SM' isSoil Classification
The Factor of Safety (FOS) against the sliding of an Earthen Slope is defined as the ratio ofStability of Slopes
In Earthen Embankments, a Phreatic Line is defined asSeepage Analysis
Electro-osmosis is a ground water control technique most effectively used inGround Improvement Techniques
For stability analysis of an embankment dam of homogeneous earth, the failure surface is assumed to beStability of Slopes
In a constant head permeameter with cross-section area of 10 cm², when the flow was taking place under a hydraulic gradient of 0.5, the amount of…Permeability
A coarse-grained soil has a void ratio of 0.75 and specific gravity of 2.75. The critical gradient at which quick sand condition occurs isSeepage Analysis
The grain size of a soil indicated that D10 = 0.75 mm, D30 = 1.5 mm and D60 = 3 mm. The uniformity co-efficient of this soil isIndex Properties
If the liquid limit of a soil mass is 20% and its plastic limit is 25%, then the plasticity index of this soil will beIndex Properties
The addition of coarse particles like sand or silt to a soil, particularly clay causesIndex Properties
Shrinkage limit of a clay whose void ratio in dry state is 0.55 and specific gravity 2.75 isIndex Properties
The liquid limit and plastic limit of a soil sample are 65% and 29% respectively. The percentage of the soil fraction with grain size finer than…Index Properties
A soil sample is having a specific gravity of 2.60 and a void ratio of 0.78. The water content in percentage required to fully saturate the soil at…Index Properties
A soil has liquid limit of 60%, plastic limit of 35%, shrinkage limit of 20% and it has a natural moisture content of 50%. The liquidity index of…Index Properties
A sand lying below a masonry dam has a porosity of 40% and a specific gravity of 2.67. The maximum permissible upward gradient, if a factor of safety…Seepage Analysis
A flow net is drawn for a weir. The total head loss is 6 m, number of potential drops is 10 and length of flow path for the last square is 1m. The…Seepage Analysis