Soil & Foundation Engineering Mock test – 4 || Civil Engineering Mock tests Welcome to your Soil Mechanics and Foundation Engineering Mock test - 4 Take an exciting test in Soil Mechanics and Foundation Engineering You have only 20 mins to complete the test (25 Questions) Wish you all the best!!! Name Email 1. The phreatic line in an earth dam may be A. circular B. elliptical C. parabolic D. a straight line2. For a base failure of a slope, depth factor A. Df = 1 B. Df < 1 C. Df > 1 D. none of these.3. Pick up the incorrect definition from the following: A. Ratio of the compressive strength of unconfined undisturbed soil to that of remoulded soil, is known as the sensitivity of the soil sample B. The rotation of soil particles into stable state while remoulding, is known as the thiostropy of soil C. The water content at which a soil changes from the liquid state to solid state, is known liquid limit of the soil D. The water content at which a soil flows, is known plastic limit of the soil4. The ratio of the undrained strength in the undrained state to the undrained strength, at the same water content, in the remoulded state, is called the sensivity of the clay. Its value for quick clays is A. 4 B. 8 C. 12 D. 16 E. 205. A soil sample of mass specific gravity 1.92, has a moisture content 30%. If the specific gravity of solids is 2.75, the degree of saturation, is A. 95.4% B. 95.5% C. 95.6% D. 95.7%6. Cohesive soils are generally A. plastic and also compressible B. elastic and also compressible C. plastic but incompressible D. none of these.7. The inventor of the term soil mechanics, was A. Kray B. Dr. Karl Terzaghi C. Leygue D. Fellenius.8. The shearing strength of a cohesion-less soil depends upon A. dry density B. rate of loading C. confining pressure D. nature of loading.9. If drainage is permitted throughout the test, during the application of both normal, and shear stresses so that full consolidation occurs and no excess pore pressure is set up at any stage of the test, is known as A. quick test B. drained test C. consolidated undrained test D. none of these.10. The minimum depth of building foundations on A. sandy soils is 80 cm to 100 cm B. clay soils is 90 cm to 160 cm C. rocky soils is 5 cm to 50 cm D. all the above.11. If the coefficient of the active pressure Ka is 1/3, the coefficient of passive pressure Kp, is A. 1/3 B. 2/3 C. 1 D. 3/2 E. 312. The angle of internal friction, is least for A. angular-grained loose sand B. angular -grained dense sand C. round-grained loose sand D. round-grained loose sand E. clays.13. According to IS : 2720 - 1965, the composition of a dispersing solution used in pipette analysis for determining the size of particles, is A. sodium-hexametaphosphate 33 g, sodium carbonate 7 g and distilled water one litre B. sodium-hexametaphosphate 7 g, sodium carbonate 33 g and distilled water one litre C. sodium-hexametaphosphate 23 g, sodium carbonate 17 g and distilled water one litre D. none of these.14. The total weight of a pycnometer with water and oven dried soil 20 (g) is 1600 g. The pycnometer filled with water alone weighs 1500 g. The specific gravity of the soil, is A. 1.0 B. 1.5 C. 2.0 D. 2.515. In a fow net A. flow lines and equipotential lines cross each other at right angles B. fields are rectangles whose length is twice the breadth C. smaller the dimensions of the field, smaller will be the hydraulic gradient and velocity of flow through it D. for homogeneous soil, the curves are smooth and circular.16. In non-cohesive soil in passive state of plastic equilibrium A. major principal stress is horizontal B. minor principal stress is vertical l C. major principal stress is vertica D. minor and major principal stresses are equally inclined to the horizontal.17. For slopes of limited extent the surface of slippage, is usually along A. a parabolic arc B. an elliptical arc C. a straight line D. a circular arc.18. The ratio of the volume of water present in a given soil mass to the total volume of its voids, is known A. porosity B. void ratio C. percentage voids D. degree of saturation.19. In a purely cohesive soil, the critical centre lies at the intersection of A. perpendicular bisector of slope and the locus of the centre B. perpendicular drawn at l/3rd slope from toe and the locus of the centre C. perpendicular drawn at 2/3rd slope from toe and the locus of the centre D. directional angles20. Stoke's law does not hold good if the size of particle is smaller than A. 0.0002 mm B. 0.002 mm C. 0.02 mm D. 0.2 mm21. Compression of soil occurs rapidly if voids are filled with A. air B. water C. partly with air and partly with water D. none of these.22. A soil mass coated with a thin layer of paraffin weighs 460 g. When immersed, it displaces 299 cc of water. The weight of paraffin is 10 g. If specific gravity of solids is 2.5 and that of paraffin 0.9, the void ratio of soil, is A. 0.55 B. 0.60 C. 0.65 D. 0.7023. Plasticity index is defined as the range of water content between A. liquid and plastic limit B. plastic limit and semi solid limit C. semi-solid limit and liquid limit D. liquid limit and solid limit.24. The method of the slices is applicable to A. homogenous soils B. stratified soils C. saturated soils D. non-uniform slopes25. When the seepage pressure becomes equal to the pressure due to submerged weight of a soil, the effective pressure is reduced to zero and the soil particles have a tendency to move up in the direction of flow. This phenomenon is generally known A. quick condition B. boiling condition C. quick sand D. all the above.