Soil Mechanics MCQ Civil Engineering Questions Answers


11) A pycnometer is used to determine

a) water content and voids ratio

b) specific gravity and dry density

c) water content and specific gravity

d) voids ratio and dry density

View Answer
Option – c)

12) According to Skempton, if the variation of rate of strain is ± 5 times the normal rate of strain, the

undrained strength varies by

(a) 5 to 10%

(b) 10 to 20%

(c) 20 to 25%

(d) 30 to 40%

View Answer
Option – a)

13)  Number of phases in soil mass is :

a) 3

b) 2

c) 1

d) 4

View Answer
Option – a)

14) Quick sand is

(a) a sand which can act as a quick filter

(b) a uniformly graded sand

(c) a condition when cohesionless soil loses its shear strength due to upward flow water

(d) the conditions focusing quick flow of water through the soil.

View Answer
Option – c)

15) A soil has a liquid limit of 40% and plasticity index of 20%. The plastic limit of the soil will be

a) 20%

b) 30%

c) 40%

d) 60%

View Answer
Option – a)

16) The rate of increase of stress in loose sand compared to dense sand is

(a) slower

(b) same

(c) faster

(d) same or faster

View Answer
Option – a)

17) Consistency as applied to cohesive soils is an indicator of its

a) density

b) moisture content

c) shear strength

d) porosity

View Answer
Option – c)

18) Ultimate bearing capacity of soil is the

(a) maximum gross pressure at which soil fails in shear.

(b) maximum net pressure at which soil fails in shear.

(c) maximum pressure at which soil settles beyond the specified limit.

(d) both (a) and (c).

View Answer
Option – a)

19) A clay sample has a void ratio 0.54 in dry state. The specific gravity of soil solids is 2.7. what is the shrinkage limit of the soil ?

a) 8.5%

b) 10.0%

c) 17.0%

d) 20.0%

View Answer
Option – d)

20) Among the clay minerals, the one having the maximum swelling tendency is

a) kaolinite

b) llite

c) Montmorillonite

d) Halloysite

View Answer
Option – c)