2351. A fully saturated soil is said to be________________?
A. one phase system
B. two phase system with soil and air
C. two phase system with soil and water
D. three phase system
✅ The correct answer is option C.
Civil Engineering
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2352. With the increase in the amount of compaction energy________________?
A. optimum water content increases but maximum dry density decreases
B. optimum water content decreases but maximum dry density increases
C. both optimum water content and maximum dry density increase
D. both optimum water content and maximum dry density decrease
✅ The correct answer is option B.
2353. Allowable bearing pressure for a foundation depends upon_______________?
A. allowable settlement only
B. ultimate bearing capacity of soil only
C. both allowable settlement and ultimate bearing capacity
D. none of above
✅ The correct answer is option C.
2354. 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
✅ The correct answer is option B.
2355. The maximum dry density upto which any soil can be compacted depends upon____________?
A. moisture content only
B. amount of compaction energy only
C. both moisture content and amount of compaction energy
D. none of the above
✅ The correct answer is option C.
2356. If the water table rises upto ground surface, then the___________________?
A. effective stress is reduced due to decrease in total stress only but pore water pressure does not change
B. effective stress is reduced due to increase in pore water pressure only but total stress does not change
C. total stress is reduced due to increase in pore water pressure only but effec-tive stress does not change
D. total stress is increased due to de-crease in pore water pressure but effective stress does not change
✅ The correct answer is option B.
2357. A retaining wall 6m high supports a backfill with a surcharge angle of 10°. The back of the wall is inclined to the vertical at a positive batter angle of 5°. If the angle of wall friction is 7°, then the resultant active earth pressure will act at a distance of 2 m above the base and inclined to the horizontal at an angle of_________________?
A. 7°
B. 10°
C. 12°
D. 17°
✅ The correct answer is option C.
2358. Toughness index is defined as the ratio of____________________?
A. plasticity index to consistency index
B. plasticity index to flow index
C. liquidity index to flow index
D. consistency index to liquidity index
✅ The correct answer is option B.
2359. Rankine’s theory of earth pressure assumes that the back of the wall is_______________?
A. plane and smooth
B. plane and rough
C. vertical and smooth
D. vertical and rough
✅ The correct answer is option C.
2360. Which of the following is a measure of particle size range ?
A. effective size
B. uniformity coefficient
C. coefficient of curvature
D. none of the above
✅ The correct answer is option B.