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Soil Mechanics and Foundation - Interview Questions and Answers

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61. Select the correct statement.
A. coefficient of compressibility of an over-consolidated clay is less than that of a normally consolidated clay
B. coefficient of compressibility of an over-consolidated clay is greater than that of a normally consolidated clay
C. coefficient of compressibility is cons-tant for any clay
D. none of the above
Explanation:
62. The flownet for an earthen dam with 30 m water depth consists of 25 potential drops and 5 flow channels. The coefficient of permeability of dam material is 0.03 mm/sec. The discharge per metre length of dam is
A. 0.00018 nrVsec
B. 0.0045 m3/sec
C. 0.18m3/sec
D. 0.1125m3/sec
Explanation:
63. Coefficient of permeability of soil
A. does not depend upon temperature
B. increases with the increase in tempe-rature v
C. increases with the decrease in tempe-rature
D. none of the above
Explanation:
64. If the permeability of a soil is 0.8 mm/sec, the type of soil is
A. gravel
B. sand
C. silt
D. clay
Explanation:
65. Which of the following methods is best suited for determination of permeability of coarsegrained soils ?
A. constant head method
B. falling head method
C. both the above
D. none of the above
Explanation:
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