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Soil Mechanics and Foundation Engineering problems


  • 1. The specific gravity of sands, is approximately

  • Options
  • A. 1.6
  • B. 2.0
  • C. 2.2
  • D. 2.4
  • E. 2.6
  • Discuss
  • 2. A sample of saturated soil has 30% water content and the specific gravity of soil grains is 2.6. The dry density of the soil mass in g/cm3, is

  • Options
  • A. 1.47
  • B. 1.82
  • C. 1.91
  • D. none of these.
  • Discuss
  • 3. A soil sample has passing 0.075 mm sieve = 60% liquid limit = 65% and plastic limit = 40%. The group index of the soil, is

  • Options
  • A. 5
  • B. 20
  • C. 40
  • D. none of these.
  • Discuss
  • 4. The capillary rise of water

  • Options
  • A. depends upon the force responsible
  • B. increases as the size of the soil particles increases
  • C. decreases as the size of the soil particles decreases
  • D. is less in wet soil than in dry soil.
  • Discuss
  • 5. Over-consolidation of soils is caused due to

  • Options
  • A. erosion of over burden
  • B. melting of ice sheets after glaciation
  • C. permanent rise of water table
  • D. all the above.
  • Discuss
  • 6. A stratum of clay 2 m thick will get consolidated 80% in 10 years. For the 80% consolidation of 8 m thick stratum of the same clay, the time required is

  • Options
  • A. 100 years
  • B. 120 years
  • C. 140 years
  • D. 160 years
  • E. 180 years.
  • Discuss
  • 7. A moist soil sample of volume 60 cc. weighs 108 g and its dried weight is 86.4 g. If its absolute density is 2.52, the degree of saturation is

  • Options
  • A. 54%
  • B. 64%
  • C. 74%
  • D. 84%
  • Discuss
  • 8. Si particles

  • Options
  • A. show dilatancy
  • B. swell when moist
  • C. possess high strength when dry
  • D. disintegrate easily.
  • Discuss
  • 9. If dry density, water density and specific gravity of solids of a given soil sample are 1.6 g/cc, 1.84 g/cc and 2.56 respectively, the porosity of the soil sample, is

  • Options
  • A. 0.375
  • B. 0.370
  • C. 0.380
  • D. 0.390
  • Discuss
  • 10. Pick up the incorrect statement from the following:

  • Options
  • A. The smaller the size of the pores, the higher the water can rise above the water table.
  • B. Below the water table, the pore water may be static.
  • C. The hydrostatic pressure depends on the depth below the water level.
  • D. The attractive forces between the particles, caused due to negative pressure of water held above the water table is called soil suction.
  • E. None of these.
  • Discuss

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