Related Mcqs:

1. Clay layer A with single drainage and coefficient of consolidation Cv takes 6 months to achieve 50% consolidation. The time taken by clay layer B of the same thickness with double drainage and coefficient of consolidation Cv/2 to achieve the same degree of consolidation is_________________?

   A. 3 months
   B. 6 months
   C. 12 months
   D. 24 months

2. Inorganic soils with low compressibility are represented by_________________?

   A. MH
   B. SL
   C. ML
   D. CH

3. Compressibility of sandy soils is______________?

   A. almost equal to that of clayey soils
   B. much greater than that of clayey soils
   C. much less than that of clayey soils
   D. none of the above

4. Uniformity coefficient of a soil is__________________?

   A. always less than 1
   B. always equal to 1
   C. equal to or less than 1
   D. equal to or gi eater than 1

5. Due to a rise in temperature, the viscosity and the unit weight of the percolating fluid are reduced to 60% and 90% respectively. If other things remain constant, the coefficient of permeability__________________?

   A. increases by 25%
   B. increases by 50%
   C. increases by 33.3%
   D. decreases by 33.3%

6. 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 meter length of dam is________________?

   A. 0.00018 nrVsec
   B. 0.0045 m3/sec
   C. 0.18m3/sec
   D. 0.1125m3/sec

7. The average coefficient of permeability of natural deposits________________?

   A. parallel to stratification is always greater than that perpendicular to stratification
   B. parallel to stratification is always less than that perpendicular to stratification
   C. is always same in both directions
   D. parallel to stratification may or may not be greater than that perpendicular to stratification

8. Skempton’s pore pressure coefficient B for saturated soil is________________?

   A. 1
   B. zero
   C. between 0 and 1
   D. greater than 1

9. The coefficient of active earth pressure for a loose sand having an angle of internal friction of 30° is___________________?

   A. 1/3
   B. 3
   C. 1
   D. 1/2

10. Coefficient of earth pressure at rest is__________________?

    A. less than active earth pressure but greater than passive earth pressure
    B. greater than active earth pressure but less than passive earth pressure
    C. greater than both the active earth pressure and passive earth pressure
    D. less than both the active and passive earth pressures