71 Soil Mechanics McQ Chapter Wise Online Test of 25 Question #5 Soil Mechanics McQ Chapter Wise McQ online Test of 25 Question for PSC, NEC, UPSC, SSC and Many more. 1 / 25 1. The angle between the directions of the failure and the major principal plane, is equal to A. 90° + effective angle of shearing resistance B. 90° + half of the angle of shearing resistance C. 45° – half of the angle of shearing resistance D. 45° + half of the angle of shearing resistance 2 / 25 2. The internal molecular attraction of a soil, the cohesion A. decreases as the moisture content increases B. increases as the moisture content decreases C. is more in well compacted clays D. depends upon the external applied load 3 / 25 3. Cohesive soils are generally A. plastic and also compressible B. elastic and also compressible C. plastic but incompressible D. none of these 4 / 25 4. A plane inclined at an angle φ to the horizontal at which the soil is expected to stay in the absence of any lateral support, is known as A. natural slope line B. repose line C. the φ line D. all the above 5 / 25 5. The angle of internal friction of clays, is usually A. 0° 𝑡𝑜 5° B. 5° 𝑡𝑜 20° C. 20° 𝑡𝑜 30° D. 30° 𝑡𝑜4 5° 6 / 25 6. The angle of internal friction Φ for cohesive soils is equal to A. zero B. 30° C. 45° D. 15° 7 / 25 7. The angle of internal friction, is least for A. angular-grained loose sand B. angular -grained dense sand C. round-grained loose sand D. clays 8 / 25 8. The angle of internal friction is maximum for A. angular-grained loose sand B. angular -grained dense sand C. round-grained loose sand D. round-grained loose sand 9 / 25 9. The angle of internal friction depends upon A. the particle shape and roughness B. the amount of interlocking C. normal direct pressure D. all of above 10 / 25 10. The change of moisture content of soils, changes the A. value of the angle of repose B. amount of compaction required C. cohesive strength of soil D. all the above 11 / 25 11. In active state of plastic equilibrium, the retaining wall moves A. towards the fill B. away from the fill C. does not change its position D. remains equilibrium 12 / 25 12. In active state, the failure wade shows A. downward movement B. upward movement C. left side movement D. right side movement 13 / 25 13. For earth pressure at rest, there will be no A. vertical stress B. shear stress C. horizontal stress D. both vertical and horizontal stress 14 / 25 14. The ratio of horizontal stress to vertical stress is A. coefficient of earth pressure B. coefficient of volume change C. coefficient of compressibility D. coefficient of consolidation 15 / 25 15. Coefficient of lateral earth pressure is the ratio of A. Horizontal stress and vertical stress B. Vertical pressure downward to vertical pressure upward C. Pressure of soil to pressure of soil when saturated D. Shear force of soil in soil to pressure of soil when saturated 16 / 25 16. Expression of Ko as given by Jacky is A. Ko = 1- sin∅ B. Ko = sin∅ C. Ko = 1- cos∅ D. Ko = 1+ sin∅ 17 / 25 17. The earth pressure of a soil at rest, is proportional to (where φ is the angle of internal friction of the soil) A. tan (45° – φ) B. tan (45° + φ) C. tan ² (45° – φ) D. none of these 18 / 25 18. The coefficient of earth pressure at rest is given by A. 𝑘𝑜 = 𝜇 / 1−𝜇 B. 𝑘𝑜 = 𝜇 / 1+𝜇 C. 𝑘𝑜 = 2𝜇 / 1−𝜇 D. 𝑘𝑜 = 1 / 1−𝜇 19 / 25 19. One of the graphical methods for earth pressure determination is A. Newmark's influence chart method B. Mohr diagram method C. Culman's method D. Taylor's method 20 / 25 20. Originally, Rankine’s earth pressure theory can be applied to only A. cohesionless soil B. cohesive soil C. fine grained soil D. coarse grained soil 21 / 25 21. Rankine’s Earth pressure theory assumes that back of wall is A. plane & smooth B. vertical & smooth C. plane & rough D. vertical & rough 22 / 25 22. Rankine’s theory of active earth pressure assumes A. soil mass is homogeneous, dry and cohesionless B. back of the wall is vertical and smooth C. wall yields about the base D. all the above 23 / 25 23. A soil mass is said to be in plastic equilibrium if A. it is stressed to maximum B. it is on the verge of failure C. it is in plastic stage D. it starts flowing 24 / 25 24. The coefficient of active earth pressure is given by A. (1+sin∅) / (1−sin∅) B. (1−sin∅) / (1+sin∅) C. (1−tan∅) / (1+tan∅) D. (1+tan∅) / (1−tan∅) 25 / 25 25. The active earth pressure of a soil is proportional to (where φ is the angle of friction of the soil) A. tan(45 − ∅) B. tan² (45 + ∅/ 2 ) C. tan² (45 − ∅ /2 ) D. tan(45 + ∅) Your score is The average score is 56% 0% Restart quiz Exit civil engineermcqcivilmock testnecpscsoil mechanics mcqupsc
