Soil Mechanics and Foundation Engineering

91. For better strength and stability, the fine grained soils and coarse grained soils are compacted respectively as

  1. Dry of OMC and wet of OMC
  2. Wet of OMC and dry of OMC
  3. Wet of OMC and wet of OMC
  4. Dry of OMC and dry of OMC where OMC is optimum moisture content

Correct answer: (B)
Wet of OMC and dry of OMC

92. For determine 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 solids, is

  1. 2
  2. 2.25
  3. 2.5
  4. 2.75

Correct answer: (C)
2.5

93. 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

  1. 15 %
  2. 18 %
  3. 20 %
  4. 25 %

Correct answer: (C)
20 %

94. For determining the ultimate bearing capacity of soil, the recommended size of a square bearing plate to be used in load plate test should be 30 to 75 cm square with a minimum thickness of

  1. 5 mm
  2. 10 mm
  3. 15 mm
  4. 25 mm

Correct answer: (D)
25 mm

95. For general engineering purposes, soils are classified by

  1. Particle size classification system
  2. Textural classification system
  3. High Way Research Board (HRB), classification system
  4. Unified soil classification system

Correct answer: (D)
Unified soil classification system

96. For proper field control, which of the following methods is best suited for quick determination of water content of a soil mass?

  1. Oven drying method
  2. Sand bath method
  3. Alcohol method
  4. Calcium carbide method

Correct answer: (D)
Calcium carbide method

97. For shear strength, triaxial shear test is suitable because

  1. It can be performed under all three drainage conditions
  2. Precise measurement of the pore pressure and volume change during the test is possible
  3. Stress distribution on the failure plane, is uniform
  4. All the above

Correct answer: (D)
All the above

98. For slopes of limited extent the surface of slippage, is usually along

  1. A parabolic arc
  2. An elliptical arc
  3. A straight line
  4. A circular arc

Correct answer: (D)
A circular arc

99. For testing a saturated clay for shear strength, the test recommended, is

  1. Direct shear test
  2. Triaxial compression test
  3. Unconfined compression test
  4. All the above

Correct answer: (C)
Unconfined compression test

100. Fundamental relationship between dry density (γd), bulk density (γ) and water content (ω), is:

  1. γ= γd/1 + ω
  2. γd = γ/1 + ω
  3. ω =γ/1 + d
  4. ω =γ- d

Correct answer: (B)
γd = γ/1 + ω

Previous
Page 10 of 35
Next
Copyright © EngineeringMCQ.com