Questions and answers for exam Preparation

MCQs

Total Questions : 1204 | Page 7 of 121 pages

Question 61. Within the consolidation process of a saturated clay

a gradual increase in neutral pressure and a gradual decrease in effective pressure takes place and sum of the two is constant
a gradual decrease in neutral pressure and a gradual increase in effective pressure takes place and sum of the two is constant
both neutral pressure and effective pressure decrease
both neutral pressure and effective pressure increase

Discuss Question

Answer: Option B. -> a gradual decrease in neutral pressure and a gradual increase in effective pressure takes place and sum of the two is constant

Question 62. Rise of water table in cohesionless soils upto ground surface reduces the net ultimate bearing capacity approximately by

Discuss Question

Answer: Option B. -> 50%

Question 63. Terzaghi’s bearing capacity factors Nc, Nq and Nr are functions of

cohesion only
angle of internal friction only
both cohesion and angle of internal friction
none of the above

Discuss Question

Answer: Option B. -> angle of internal friction only

Question 64. Valid range for S, the degree of saturation of soil in percentage is

S > 0
S < 0
0 < S < 100
0 ≤ S ≤ 100

Discuss Question

Answer: Option D. -> 0 ≤ S ≤ 100

Question 65. If the natural water content of soil mass lies between its liquid limit and plastic limit, the soil mass is said to be in

liquid state
plastic state
semi-solid state
solid state

Discuss Question

Answer: Option B. -> plastic state

Question 66. 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

0.00018 nrVsec
0.0045 m3/sec
0.18 m3/sec
0.1125 m3/sec

Discuss Question

Answer: Option A. -> 0.00018 nrVsec

Question 67. The average coefficient of permeability of natural deposits

Parallel to stratification is always greater than that perpendicular to stratification
Parallel to stratification is always less than that perpendicular to stratification
Is always same in both directions
Parallel to stratification may or may not be greater than that perpendicular to stratification

Discuss Question

Answer: Option A. -> Parallel to stratification is always greater than that perpendicular to stratification

Question 68. For proper field control, which of the following methods is best suited for quick determination of water content of a soil mass ?