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__________________?

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. 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

3. Coefficient of permeability of soil______________?

   A. does not depend upon temperature
   B. increases with the increase in temperature
   C. increases with the decrease in temperature
   D. none of the above

4. 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

5. Coefficient of consolidation for clays normally_______________?

   A. decreases with increase in liquid limit
   B. increases with increase in liquid limit
   C. first increases and then decreases with increase in liquid limit
   D. remains constant at all liquid limits

6. Coefficient of compressibility is_______________?

   A. constant for any type of soil
   B. different for different types of soils and also different for a soil under different states of consolidation
   C. different for different types of soils but same for a soil under different states of consolidation
   D. independent of type of soil but depends on the stress history of soil

7. Coefficient of consolidation of a soil is affected by_______________?

   A. compressibility
   B. permeability
   C. both compressibility and permeability
   D. none of the above

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