Soil Mechanics and Foundation Engineering

301. 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

  1. 1
  2. 1.5
  3. 2
  4. 2.5

Correct answer: (C)
2

302. The triaxial apparatus is usually used for

  1. Unconsolidated-undrained test
  2. Consolidated-undrained test
  3. Drained test
  4. All the above tests

Correct answer: (D)
All the above tests

303. The ultimate bearing capacity of a soil, is

  1. Total load on the bearing area
  2. Safe load on the bearing area
  3. Load at which soil fails
  4. Load at which soil consolidates

Correct answer: (C)
Load at which soil fails

304. The ultimate consolidation settlement of a soil is

  1. Directly proportional to the voids ratio
  2. Directly proportional to the compression index
  3. Inversely proportional to the compression index
  4. None of the above

Correct answer: (B)
Directly proportional to the compression index

305. The ultimate consolidation settlement of a structure resting on a soil

  1. Decreases with the increase in the initial voids ratio
  2. Decreases with the decrease in the plastic limit
  3. Increases with the increase in the initial voids ratio
  4. Increases with the decrease in the porosity of the soil

Correct answer: (A)
Decreases with the increase in the initial voids ratio

306. The ultimate Settlement of a soil is directly proportional to:

  1. Depth of the compressible soil strata
  2. Compressive index
  3. Both (a) and (b)
  4. None of these

Correct answer: (D)
None of these

307. The value of compression index for a remoulded sample whose liquid limit is 50% is

  1. 0.028
  2. 0.28
  3. 36
  4. 0.036

Correct answer: (B)
0.28

308. The vane shear test is used for the in-situ determination of the undrained strength of the intact fully saturated

  1. Sands
  2. Clays
  3. Gravels
  4. Highly organic soils

Correct answer: (B)
Clays

309. The void ratio of a soil sample decreases from 1.50 to 1.25 when the pressure is increased from 25 tonnes/m2 to 50 tonnes/m2, the coefficient of compressibility is

  1. 0.01
  2. 0.02
  3. 0.05
  4. 0.001

Correct answer: (A)
0.01

310. The water content in a soil sample when it continues to loose weight without loosing the volume, is called

  1. Shrinkage limit
  2. Plastic limit
  3. Liquid limit
  4. Semi-solid limit

Correct answer: (A)
Shrinkage limit

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