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Civil Engineering - Soil Mechanics and Foundation Engineering

Exercise : Soil Mechanics and Foundation Engineering - Section 3
26.
Pick up the correct statement from the following:
O.M.C. refers to the moisture corresponding to the maximum point on the moisture content dry density curve
The line which shows moisture content dry density relation for soil containing a constant percentage of air voids, is known as air void line
The weight of hammer used for compaction test is 25 kg
The free fall of hammer for compaction is 30.5 cm
All the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
The passive earth pressure of a soil, is proportional to (where φ is the angle of internal friction of the soil.)
tan (45° - φ)
tan (45° + φ)
tan2 (45° - φ
tan2 (45° + φ)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
If a soil undergoes a change in shape and volume by application of external loads over it, but recovers its shape and volume immediately after removal of the load, the property of the soil is said to be
Resilience of soils
Elasticity of soils
Compressibility of soils
None of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
If the unit weight of sand particles is 2.696 g/cc. and porosity in loose state is 44%, the critical hydraulic gradient for quick sand condition, is
0.91
0.92
0.93
0.94
0.95
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
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
0.01
0.02
0.05
0.001
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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