MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 266 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
If is specific gravity of sand particles, is porosity, the critically hydraulic gradient |
| A. | = |
| B. | = |
| C. | = |
| D. | = |
| Answer» D. = | |
| 2. |
Fundamental relationship between dry density (), bulk density () and water content (), is : |
| A. | = |
| B. | = |
| C. | = |
| D. | = |
| Answer» C. = | |
| 3. |
If the cohesive force, (), is 1.5 t/m, the density ) of the soil is 2.0 t/m, factor of safety () is 1.5 and stability factor () is 0.05, the safe height of the §lope, is |
| A. | 5 metres |
| B. | 8 metres |
| C. | 10 metres |
| D. | 12 metres |
| Answer» D. 12 metres | |
| 4. |
A soil has bulk density 2.30 g/cm and water content 15 per cent, the dry density of the sample, is |
| A. | 1.0 g/cm |
| B. | 1.5 g/cm |
| C. | 2.0 g/cm |
| D. | 2.5 g/cm |
| Answer» D. 2.5 g/cm | |
| 5. |
If , and are the arc length, long chord and radius of the sliding circle then the perpendicular distance of the line of the resultant cohesive force, is given by |
| A. | none of these. |
| Answer» B. | |
| 6. |
Back fill with a sloping surface exerts a total active pressure on the wall of height and acts at |
| A. | 4 above the base parallel to base |
| B. | 2 above the base parallel to base |
| C. | 3 above the base parallel to base |
| D. | 5 above the base parallel to base. |
| Answer» D. 5 above the base parallel to base. | |
| 7. |
For a clay slope of height of 10 m, the stability number is 0.05, = 2.0 t/m, C = 2.5 t/m, the critical height of the slope of the soil, is |
| A. | 4.0 m |
| B. | 12.5 m |
| C. | 25.0 m |
| D. | 15.0 m |
| Answer» D. 15.0 m | |
| 8. |
The equation τ = + σ tan φ is given by |
| A. | Rankine |
| B. | Coulomb |
| C. | Culaman |
| D. | Mohr. |
| Answer» C. Culaman | |
| 9. |
A fundamental equation of void ratio(), specific gravity (), water content and degree of saturation () is |
| A. | = |
| B. | = |
| C. | = |
| D. | = |
| Answer» B. = | |
| 10. |
The general relationship between specific gravity (), weight of water (), degree of saturation (), void ratio () and bulk density (), is |
| A. | = |
| B. | = |
| C. | = |
| D. | = |
| Answer» C. = | |
| 11. |
A compacted soil sample using 10% moisture content has a weight of 200 g and mass unit weight of 2.0 g/cm. If the specific gravity of soil particles and water are 2.7 and 1.0, the degree of saturation of the soil is |
| A. | 11.1% |
| B. | 55.6% |
| C. | 69.6% |
| D. | none of these. |
| Answer» C. 69.6% | |
| 12. |
A suspended particle falls through a height cm in water in minutes. If the viscosity of water is and specific gravity of the particle is , the diameter of the particle is (where is a constant factor) |
| A. | 10 |
| B. | 10 |
| C. | 10 |
| D. | 10 |
| Answer» D. 10 | |
| 13. |
The ratio of and of silty sand, is |
| A. | 2.0 |
| B. | 5 |
| C. | 3.0 |
| D. | 3.5 |
| E. | 4.0 |
| Answer» D. 3.5 | |
| 14. |
If water content of a soil is 40%, is 2.70 and void ratio is 1.35, the degree of saturation is |
| A. | 70% |
| B. | 75% |
| C. | 80% |
| D. | 85% |
| E. | 90% |
| Answer» D. 85% | |
| 15. |
An unsaturated 100 cm sample of soil weighs 190 g. If its dried weight is 160 g, water content of the soil, is |
| A. | 0.188 |
| B. | 0.288 |
| C. | 0.388 |
| D. | 0.488 |
| E. | 0.588 |
| Answer» B. 0.288 | |
| 16. |
A structure is erected on an impervious clay whose thickness is 12 m. Drainage is possible both at upper and lower surfaces. Coefficient of consolidation is 0.015 cm per minute. For attaining 50% consolidation with a time factor 0.20, the number of days required |
| A. | 3233 |
| B. | 3123 |
| C. | 33331 |
| D. | 3313 |
| Answer» D. 3313 | |
| 17. |
The intensity of active earth pressure at a depth of 10 metres in dry cohesionless sand with an angle of internal friction of 30° and with a weight of 1.8 t/m, is |
| A. | 4 t/m |
| B. | 5 t/m |
| C. | 6 t/m |
| D. | 7 t/m |
| E. | 8 t/m |
| Answer» D. 7 t/m | |
| 18. |
The fundamental equation of air content (), degree of saturation () and void ratio (), is |
| A. | = |
| B. | = |
| C. | = |
| D. | = 1 + e/S |
| Answer» D. = 1 + e/S | |
| 19. |
The fundamental equation of specific gravity (), dry density (), unit weight of water and void ratio (), is |
| A. | = |
| B. | = |
| C. | = |
| D. | = |
| Answer» D. = | |
| 20. |
Fundamental relationship between dry density (), specific gravity (), water content () and percentage of air voids () is : |
| A. | = |
| B. | = |
| C. | = |
| D. | = |
| Answer» B. = | |
| 21. |
A moist soil sample weighing 108 g has a volume of 60 cc. If water content is 25% and value of = 2.52, the void ratio is |
| A. | 0.55 |
| B. | 0.65 |
| C. | 0.75 |
| D. | 0.80 |
| Answer» D. 0.80 | |
| 22. |
A sample of saturated soil has 30% water content and the specific gravity of soil grains is 2.6. The dry density of the soil mass in g/cm, is |
| A. | 1.47 |
| B. | 1.82 |
| C. | 1.91 |
| D. | none of these. |
| Answer» B. 1.82 | |
| 23. |
If the coefficients of volume change and compressibility of a soil sample are respectively 6.75 x 10 and 3 x 10, the void ratio of the soil sample, is |
| A. | 1.10 |
| B. | 1.15 |
| C. | 1.20 |
| D. | 1.25 |
| E. | 1.30 |
| Answer» E. 1.30 | |
| 24. |
The void ratio of a soil sample decreases from 1.50 to 1.25 when the pressure is increased from 25 tonnes/m to 50 tonnes/m, the coefficient of compressibility is |
| A. | 0.01 |
| B. | 0.02 |
| C. | 0.05 |
| D. | 0.001 |
| Answer» B. 0.02 | |
| 25. |
If the coefficient of the active pressure is 1/3, the coefficient of passive pressure , is |
| A. | 1/3 |
| B. | 2/3 |
| C. | 1 |
| D. | 3/2 |
| E. | 3 |
| Answer» F. | |
| 26. |
The total weight of a pycnometer with water and oven dried soil 20 () is 1600 g. The pycnometer filled with water alone weighs 1500 g. The specific gravity of the soil, is |
| A. | 1.0 |
| B. | 1.5 |
| C. | 2.0 |
| D. | 2.5 |
| Answer» D. 2.5 | |
| 27. |
The expression ρω is used for |
| A. | dry density |
| B. | bulk density |
| C. | degree of saturation |
| D. | optimum water content. |
| Answer» B. bulk density | |
| 28. |
The bulk density of the soil sample stated in Q. No. 11.243, is |
| A. | 1.4 g/cc |
| B. | 1.6 g/cc |
| C. | 1.8 g/cc |
| D. | 2.0 g/cc |
| Answer» D. 2.0 g/cc | |
| 29. |
The total active earth pressure due to dry back fill with no surcharge, acts at /3 above the base of the wall and is directly proportional to |
| A. | . |
| Answer» D. | |
| 30. |
Through a point in a loaded soil mass, there exists typical planes mutually orthogonal on which the stress is wholly normal and no shear stress acts, if is |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» D. 4 | |
| 31. |
The expression ρω is used for |
| A. | dry density |
| B. | bulk density |
| C. | degree of saturation |
| D. | optimum water content. |
| Answer» B. bulk density | |
| 32. |
If the bulk density of the soil is ρ and water content ω, then dry density of the soil, is |
| A. | [A]. |
| B. | [B]. |
| C. | [C]. |
| D. | [D]. |
| Answer» D. [D]. | |
| 33. |
The coefficient of curvature is defined |
| A. | [A]. |
| B. | [B]. |
| C. | [C]. |
| D. | [D]. |
| Answer» D. [D]. | |
| 34. |
The intensity of vertical pressure at a depth Z directly below the point load Q on its axis of loading is : |
| A. | [A]. |
| B. | [B]. |
| C. | [C]. |
| D. | [D]. |
| Answer» C. [C]. | |
| 35. |
The equation τ = C + σ tan φ is given by |
| A. | Rankine |
| B. | Coulomb |
| C. | Culaman |
| D. | Mohr. |
| Answer» C. Culaman | |
| 36. |
If C is cohesion, F is factor of safety, γ is unit weight of soil and H is the maximum height of embankment, the stability number, is |
| A. | [A]. |
| B. | [B]. |
| C. | [C]. |
| D. | [D]. |
| E. | [E]. |
| Answer» C. [C]. | |
| 37. |
A structure is erected on an impervious clay whose thickness is 12 m. Drainage is possible both at upper and lower surfaces. Coefficient of consolidation is 0.015 cm2 per minute. For attaining 50% consolidation with a time factor 0.20, the number of days required |
| A. | 3233 |
| B. | 3123 |
| C. | 33331 |
| D. | 3313 |
| Answer» D. 3313 | |
| 38. |
W is the weight of soil having a moisture content ω. If V is the volume of proctor's mould, the dry density of the soil is |
| A. | [A]. |
| B. | [B]. |
| C. | [C]. |
| D. | [D]. |
| Answer» D. [D]. | |
| 39. |
If the natural moisture content, the liquid limit and plastic limit of a soil sample are stated as 30.5%, 42.5% and 22.5% respectively, the ratio of liquidity index and plastic index, is |
| A. | [A]. |
| B. | [B]. |
| C. | 2 |
| D. | [D]. |
| Answer» D. [D]. | |
| 40. |
The weight of a container is W1 and that of container with soil simple, is W2. If the weight of the container and oven dried soil sample is W3, the moisture content of the soil, is |
| A. | [A]. |
| B. | [B]. |
| C. | [C]. |
| D. | [D]. |
| Answer» B. [B]. | |
| 41. |
Pick up the correct statement applicable to plate load test |
| A. | Width of the test pit for plate load test is made five times the width of the plate |
| B. | At the centre of the test pit, a hole is dug out whose size is kept equal to the size of the test plate |
| C. | Bottom level of the hole dug at the centre of the test pit, is kept at the level of the actual formation |
| D. | Ratio of the depth of the hole to the width of the test plate is the same as the ratio of the depth of the actual formation to the width of the formation |
| E. | All the above. |
| Answer» F. | |
| 42. |
If L and B are the length and breadth of a footing, e the eccentricity along the length and P and Q are the axial force and bearing capacity of the soil, then, to avoid tension, |
| A. | [A]. |
| B. | [B]. |
| C. | [C]. |
| D. | [D]. |
| Answer» B. [B]. | |
| 43. |
Minimum depth of a footing carrying a heavy load, is calculated by the formula |
| A. | [A]. |
| B. | [B]. |
| C. | [C]. |
| D. | [D]. |
| Answer» C. [C]. | |
| 44. |
According to Rankine's fromula, the minimum depth of foundation |
| A. | [A]. |
| B. | [B]. |
| C. | [C]. |
| D. | [D]. |
| Answer» B. [B]. | |
| 45. |
If Cv is the coefficient of consolidation, t is the time and d is drainage path of one dimensional consolidation of soil, the time factor Tv, is given by |
| A. | [A]. |
| B. | [B]. |
| C. | [C]. |
| D. | [D]. |
| Answer» E. | |
| 46. |
If e0, e, σ', σ0' have their usual meanings, the coefficient of compressibility (ac), is given by |
| A. | [A]. |
| B. | [B]. |
| C. | [C]. |
| D. | [D]. |
| Answer» C. [C]. | |
| 47. |
If σ0' and σ' represent initial and increased pressure ; e0 and e void ratios corresponding to initial and increased pressure ; and C0 the compression index (dimensionless), then, the virgin compression curve as expressed by Terzaghi empirical formula is |
| A. | e = e0 + Cc log10 σ'/σ0' |
| B. | e = e0 - Cc log10 σ'/σ0' |
| C. | e0 = e - Cc log10 σ'/σ0' |
| D. | e0 = e + Cc log10 σ0'/σ' |
| Answer» C. e0 = e - Cc log10 σ'/σ0' | |
| 48. |
For a clay slope of height of 10 m, the stability number is 0.05, γ = 2.0 t/m3, C = 2.5 t/m2, the critical height of the slope of the soil, is |
| A. | 4.0 m |
| B. | 12.5 m |
| C. | 25.0 m |
| D. | 15.0 m |
| Answer» D. 15.0 m | |
| 49. |
If the cohesive force, (c), is 1.5 t/m2, the density (γ) of the soil is 2.0 t/m3, factor of safety (F) is 1.5 and stability factor (Sn) is 0.05, the safe height of the §lope, is |
| A. | 5 metres |
| B. | 8 metres |
| C. | 10 metres |
| D. | 12 metres |
| Answer» D. 12 metres | |
| 50. |
An infinite slope is inclined at angle i and has its angle of internal friction φ, the stability number Sa, is |
| A. | [A]. |
| B. | [B]. |
| C. | (tan i - tan φ) cos2 i |
| D. | (tan i - tan φ) sin2 i |
| Answer» D. (tan i - tan φ) sin2 i | |