MCQOPTIONS
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MCQOPTIONS
This section includes 372 Mcqs, each offering curated multiple-choice questions to sharpen your Surveying knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
Coulomb's wedge theory assumes that |
| A. | back fill is dry, cohesionless, homogeneous and isotropic |
| B. | slip surface is the plane which passes through the heel of the wall |
| C. | sliding wedge itself acts as a rigid body and the value of earth pressure is obtained by considering the limiting equilibrium of the wedge |
| D. | all the above. |
| Answer» E. | |
| 202. |
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. |
| Answer» E. | |
| 203. |
Stoke's law sates that the velocity at which a grain settles out of suspension, the other factors remaining constant, is dependent upon |
| A. | shape of grain |
| B. | weight of grain |
| C. | size of grain |
| D. | shape, size and weight of grain. |
| Answer» E. | |
| 204. |
The area of cross-section A at failure or during any stage of Triaxial Compression Test and its initial length (L) and volume (V), are related by the equation |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» D. D | |
| 205. |
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 | |
| 206. |
If G is specific gravity of sand particles, e is porosity, the critically hydraulic gradient |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» D. D | |
| 207. |
The coefficient ka of the active earth pressure, is given by |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» E. | |
| 208. |
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 | |
| 209. |
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. | |
| 210. |
The following expression is used for |
| A. | dry density |
| B. | bulk density |
| C. | degree of saturation |
| D. | optimum water content |
| Answer» B. bulk density | |
| 211. |
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 | |
| 212. |
A flow line makes angles θ1 and θ2 with the normal to the interface of the soils having permeabilities k1, k2 before and after deflection. According to the law of deflection of the flow lines at the interface of the dissimilar soils |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» D. D | |
| 213. |
If Nf, Nd and H are total number flow channels, total number of potential drops and total hydraulic head differences respectively, the discharge q through the complete flow is given by (where K is a constant) |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» D. D | |
| 214. |
If S, L and R 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. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» B. B | |
| 215. |
The coefficient of curvature is defined |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» D. D | |
| 216. |
Which of the following methods is best suited for determination of permeability of coarse-grained soils ? |
| A. | constant head method |
| B. | falling head method |
| C. | both the above |
| D. | none of the above |
| Answer» B. falling head method | |
| 217. |
Select the incorrect statement. Effective angle of shearing resistance |
| A. | increases as the size of particles increases |
| B. | increases as the soil gradation im-proves |
| C. | is limited to a maximum value of 45° |
| D. | is rarely more than 30° for fine grained soil |
| Answer» D. is rarely more than 30° for fine grained soil | |
| 218. |
Contact pressure beneath a rigid footing resting on cohesive soil is |
| A. | less at edges compared to middle |
| B. | more at edges compared to middle |
| C. | uniform throughout |
| D. | none of the above |
| Answer» C. uniform throughout | |
| 219. |
A tri-axial shear test is preferred to direct shear test, because |
| A. | It can be performed under all three drainage conditions with complete control |
| B. | Precise measurement of pore pressure and change in volume during test, is not possible |
| C. | Stress distribution on the failure plane, is non uniform |
| D. | None of these |
| Answer» B. Precise measurement of pore pressure and change in volume during test, is not possible | |
| 220. |
If the permeability of a soil is 0.8 mm/sec, the type of soil is |
| A. | gravel |
| B. | sand |
| C. | silt |
| D. | clay |
| Answer» C. silt | |
| 221. |
In a deposit of normally consolidated clay |
| A. | effective stress increases with depth but water content of soil and un-drained strength decrease with depth |
| B. | effective stress and water content increase with depth but undrained strength decreases with depth |
| C. | effective stress and undrained strength increase with depth but water content decreases with depth |
| D. | effective stress, water content and undrained strength decrease with depth |
| Answer» D. effective stress, water content and undrained strength decrease with depth | |
| 222. |
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[ES 93] |
| Answer» C. both optimum water content and maximum dry density increase | |
| 223. |
The most suitable method for drainage of fine grained cohesive soils is |
| A. | well ppint system |
| B. | vacuum method |
| C. | deep well system |
| D. | electroosmosis method |
| Answer» E. | |
| 224. |
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 |
| Answer» D. vertical and rough | |
| 225. |
Valid range for n, the percentage voids, is |
| A. | 0 < n < 100 |
| B. | 0 ≤ n ≤ 100 |
| C. | n > 0 |
| D. | n < 0 |
| Answer» B. 0 ≤ n ≤ 100 | |
| 226. |
For better strength and stability, the fine grained soils and coarse grained soils are compacted respectively as |
| A. | dry of OMC and wet of OMC |
| B. | wet of OMC and dry of OMC |
| C. | wet of OMC and wet of OMC |
| D. | dry of OMC and dry of OMC where OMC is optimum moisture content |
| Answer» C. wet of OMC and wet of OMC | |
| 227. |
The value of compression index for a remoulded sample whose liquid limit is 50% is |
| A. | 0.028 |
| B. | 0.28 |
| C. | 036 |
| D. | 0.036 |
| Answer» C. 036 | |
| 228. |
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 |
| Answer» C. liquidity index to flow index | |
| 229. |
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 |
| Answer» D. none of the above | |
| 230. |
Which of the following methods is most accurate for the determination of the water content of soil ? |
| A. | oven drying method |
| B. | sand bath method |
| C. | calcium carbide method |
| D. | pycnometer method |
| Answer» B. sand bath method | |
| 231. |
Sensitivity of a soil can be defined as |
| A. | percentage of volume change of soil under saturated condition |
| B. | ratio of compressive strength of unconfined undisturbed soil to that of soil in a remoulded state |
| C. | ratio of volume of voids to volume of solids |
| D. | none of the above |
| Answer» C. ratio of volume of voids to volume of solids | |
| 232. |
At liquid limit, all soils possess |
| A. | same shear strength of small magnitude |
| B. | same shear strength of large magnitude |
| C. | different shear strengths of small magnitude |
| D. | different shear strengths of large magnitude |
| Answer» B. same shear strength of large magnitude | |
| 233. |
Due to a rise in temperature, the viscosity and the unit weight of the percolating fluid are reduced to 60% and 90% respectively.If other things remain constant, the coefficient of permeability |
| A. | increases by 25% |
| B. | increases by 50% |
| C. | increases by 33.3% |
| D. | decreases by 33.3% |
| Answer» C. increases by 33.3% | |
| 234. |
The total and effective stresses at a depth of 5 m below the top level of water in a swimming pool are respectively |
| A. | zero and zero |
| B. | 0.5 kg/cm² and zero |
| C. | 0.5 kg/cm² and 0.5 kg/cm² |
| D. | 1.0 kg/cm² and 0.5 kg/cm² |
| Answer» C. 0.5 kg/cm² and 0.5 kg/cm² | |
| 235. |
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° |
| Answer» D. 17° | |
| 236. |
The rise of water table below the foundation influences the bearing capacity of soil mainly by reducing |
| A. | cohesion and effective angle of shearing resistance |
| B. | cohesion and effective unit weight of soil |
| C. | effective unit weight of soil and effective angle of shearing resistance |
| D. | effective angle of shearing resistance |
| Answer» C. effective unit weight of soil and effective angle of shearing resistance | |
| 237. |
Direct measurement of permeability of the specimen at any stage of loading can be made |
| A. | only in fixed ring type consolido-meter |
| B. | only in floating ring type consolido-meter |
| C. | both (A) and (B) |
| D. | none of the above |
| Answer» B. only in floating ring type consolido-meter | |
| 238. |
The total discharge from two wells situated near to each other is |
| A. | sum of the discharges from individual wells |
| B. | less than the sum of the discharges from individual wells |
| C. | greater than the sum of the discharges from individual wells |
| D. | equal to larger of the two discharges from individual wells |
| Answer» C. greater than the sum of the discharges from individual wells | |
| 239. |
A normally consolidated clay settled 10 mm when effective stress was increased from 100 kN/m2 to 200 kN/ m2. If the effective stress is further increased from 200 kN/ m2 to 400 kN/ m2, then the settlement of the same clay is |
| A. | 10 mm |
| B. | 20 mm |
| C. | 40 mm |
| D. | none of the above |
| Answer» B. 20 mm | |
| 240. |
In a triaxial compression test when drainage is allowed during the first stage (i. e. application of cell pressure) only and not during the second stage (i.e. application of deviator stress at constant cell pressure), the test is known as |
| A. | consolidated drained test |
| B. | consolidated undrained test |
| C. | unconsolidated drained test |
| D. | unconsolidated undrained test |
| Answer» C. unconsolidated drained test | |
| 241. |
Unconfmed compressive strength test is |
| A. | undrained test |
| B. | drained test |
| C. | consolidated undrained test |
| D. | consolidated drained test |
| Answer» B. drained test | |
| 242. |
If the volume of voids is equal to the volume of solids in a soil mass, then the values of porosity and voids ratio respectively are |
| A. | 1.0 and 0.0 |
| B. | 0.0 and 1.0 |
| C. | 0.5 and 1.0 |
| D. | 1.0 and 0.5 |
| Answer» D. 1.0 and 0.5 | |
| 243. |
A cylindrical specimen of saturated soil failed under an axial vertical stress of 100kN/m2 when it was laterally unconfmed. The failure plane was inclined to the horizontal plane at an angle of 45°. The values of cohesion and angle of internal friction for the soil are respectively |
| A. | 0.5 N/mm² and 30° |
| B. | 0.05 N/mm² and 0° |
| C. | 0.2 N/mm² and 0° |
| D. | 0.05 N/mm² and 45° |
| Answer» C. 0.2 N/mm² and 0° | |
| 244. |
Physical properties of a permeant which influence permeability are |
| A. | viscosity only |
| B. | unit weight only |
| C. | both viscosity and unit weight |
| D. | none of the above |
| Answer» D. none of the above | |
| 245. |
Dispersed type of soil structure is an arrangement comprising particles having |
| A. | face to face or parallel orientation |
| B. | edge to edge orientation |
| C. | edge to face orientation |
| D. | all of the above |
| Answer» B. edge to edge orientation | |
| 246. |
If the water content of a fully saturated soil mass is 100%, then the voids ratio of the sample is |
| A. | less than specific gravity of soil |
| B. | equal to specific gravity of soil |
| C. | greater than specific gravity of soil |
| D. | independent of specific gravity of soil |
| Answer» C. greater than specific gravity of soil | |
| 247. |
Which of the following methods is more suitable for the determination of permeability of clayey soil ? |
| A. | constant head method |
| B. | falling head method |
| C. | horizontal permeability test |
| D. | none of the above |
| Answer» C. horizontal permeability test | |
| 248. |
For proper field control, which of the following methods is best suited for quick determination of water content of a soil mass ? |
| A. | oven drying method |
| B. | sand bath method |
| C. | alcohol method |
| D. | calcium carbide method |
| Answer» E. | |
| 249. |
The average coefficient of permeability of natural deposits |
| A. | Parallel to stratification is always greater than that perpendicular to stratification |
| B. | Parallel to stratification is always less than that perpendicular to stratification |
| C. | Is always same in both directions |
| D. | Parallel to stratification may or may not be greater than that perpendicular to stratification |
| Answer» B. Parallel to stratification is always less than that perpendicular to stratification | |
| 250. |
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 |
| A. | 0.00018 nrVsec |
| B. | 0.0045 m3/sec |
| C. | 0.18 m3/sec |
| D. | 0.1125 m3/sec |
| Answer» B. 0.0045 m3/sec | |