The hydrometer method of sedimentation analysis differs from the pipette analysis mainly in_____________?

Related Mcqs:

1. In hydrometer analysis for a soil mass______________?

   A. both meniscus correction and dispersing agent correction are additive
   B. both meniscus correction and dispersing agent correction are subtractive
   C. meniscus correction is additive and dispersing agent correction is subtractive
   D. meniscus correction is subtractive and dispersing agent correction is additive

2. The rise of water table below the foundation influences the bearing capacity of soil mainly by reducing_______________?

   A. cohesion and effective angle of shearing resistance
   B. cohesion and effective unit weight of soil
   C. effective unit weight of soil and effective angle of shearing resistance
   D. effective angle of shearing resistance

3. The most suitable method for drainage of fine grained cohesive soils is________________?

   A. well ppint system
   B. vacuum method
   C. deep well system
   D. electroosmosis method

4. Bishop’s method of stability analysis_______________?

   A. is more conservative
   B. neglects the effect of forces acting on the sides of the slices
   C. assumes the slip surface as an arc of a circle
   D. all of the above

5. Valid range for S, the degree of saturation of soil in percentage is______________?

   A. S>0
   B. S<0
   C. 0<S<100
   D. 0 < S < 100

6. Stoke’s law is valid only if the size of particle is________________?

   A. less than 0.0002 mm
   B. greater than 0.2 mm
   C. between 0.2 mm and 0.0002 mm
   D. all of the above

7. The total and effective stresses at a depth of 5 m below the top level of water in a swimming pool are respectively__________________?

   A. zero and zero
   B. 0.5 kg/cm2 and zero
   C. 0.5 kg/cm2 and 0.5 kg/cm2
   D. 1.0 kg/cm2 and 0.5 kg/cm2

8. 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%

9. Coarse grained soils are best compacted by a_______________?

   A. drum roller
   B. rubber tyred roller
   C. sheep’s foot roller
   D. vibratory roller

10. Terzaghi’s general bearing capacity formula for a strip footing (C Nc + y D Nq + 0.5 Y NTB. gives______________?

    A. safe bearing capacity
    B. net safe bearing capacity
    C. ultimate bearing capacity
    D. net ultimate bearing capacity where C = unit cohesion

    Y =unit weight of soil D = depth of foundation B = width of foundation N„ Nq, NY = bearing capacity factors