MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 155 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
_ Coefficient of permeability of soil$? |
| A. | does not depend upon temperature |
| B. | increases with the increase in temperature |
| C. | increases with the decrease in temperature |
| D. | none of the above |
| Answer» C. increases with the decrease in temperature | |
| 102. |
_ Coefficient of consolidation of a soil is affected by$? |
| A. | compressibility |
| B. | permeability |
| C. | both compressibility and permeability |
| D. | none of the above |
| Answer» D. none of the above | |
| 103. |
_ A 300 mm square bearing plate settles by 15 mm in a plate load test on a cohesive soil when the intensity of loading is 0.2 N/mm². The settlement of a prototype shallow footing 1 m square under the same intensity of loading is$? |
| A. | 15 mm |
| B. | 30 mm |
| C. | 50 mm |
| D. | 167 mm |
| Answer» D. 167 mm | |
| 104. |
_ When the plastic limit of a soil is greater than the liquid limit, then the plasticity index is reported as$? |
| A. | negative |
| B. | zero |
| C. | non-plastic (NP) |
| D. | 1 |
| Answer» C. non-plastic (NP) | |
| 105. |
_ If the material of the base of the Casagrande liquid limit device on which the cup containing soil paste drops is softer than the standard hard rubber, then$? |
| A. | The liquid limit of soil always increases |
| B. | The liquid limit of soil always decreases |
| C. | The liquid limit of soil may increase |
| D. | The liquid limit of soil may decrease |
| Answer» B. The liquid limit of soil always decreases | |
| 106. |
__For proper field control, which of the following methods is best suited for quick determination of water content of a soil mass ?__ |
| A. | oven drying method |
| B. | sand bath method |
| C. | alcohol method |
| D. | calcium carbide method |
| Answer» E. | |
| 107. |
_Terzaghi’s bearing capacity factors Nc, Nq and Nr are functions of$? |
| A. | cohesion only |
| B. | angle of internal friction only |
| C. | both cohesion and angle of internal friction |
| D. | none of the above |
| Answer» C. both cohesion and angle of internal friction | |
| 108. |
_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$? |
| A. | 0.5 N/mm² and 30° |
| B. | 0.05 N/mm² and 0° |
| C. | 0.2 N/mm² and 0° |
| D. | 0.05 N/mm² and 45° |
| Answer» C. 0.2 N/mm¬¨‚⧠and 0¬¨‚àû | |
| 109. |
_Due to a rise in temperature, the viscosity and the unit weight of the percolating fluid are reduced to 60% and 90% respectively.If other things remain constant, the coefficient of permeability$? |
| A. | increases by 25% |
| B. | increases by 50% |
| C. | increases by 33.3% |
| D. | decreases by 33.3% |
| Answer» C. increases by 33.3% | |
| 110. |
_The total discharge from two wells situated near to each other is$? |
| A. | sum of the discharges from individual wells |
| B. | less than the sum of the discharges from individual wells |
| C. | greater than the sum of the discharges from individual wells |
| D. | equal to larger of the two discharges from individual wells |
| Answer» C. greater than the sum of the discharges from individual wells | |
| 111. |
_Toughness index is defined as the ratio of$? |
| 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 | |
| 112. |
_The most suitable method for drainage of fine grained cohesive soils is$? |
| A. | well ppint system |
| B. | vacuum method |
| C. | deep well system |
| D. | electroosmosis method |
| Answer» E. | |
| 113. |
_Contact pressure beneath a rigid footing resting on cohesive soil is$? |
| 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 | |
| 114. |
_Degree of consolidation is$? |
| A. | directly proportional to time and inversely proportional to drainage path |
| B. | directly proportional to time and inversely proportional to square of drainage path |
| C. | directly proportional to drainage path and inversely proportional to time |
| D. | directly proportional to square of drainage path and inversely proportional to time |
| Answer» C. directly proportional to drainage path and inversely proportional to time | |
| 115. |
_The admixture of coarser particles like sand or silt to clay causes$? |
| A. | decrease in liquid limit and increase in plasticity index |
| B. | decrease in liquid limit and no change in plasticity index |
| C. | decrease in both liquid limit and plasticity index |
| D. | increase in both liquid limit and plasticity index |
| Answer» D. increase in both liquid limit and plasticity index | |
| 116. |
_Uniformity coefficient of a soil is$? |
| A. | always less than 1 |
| B. | always equal to 1 |
| C. | equal to or less than 1 |
| D. | equal to or gi eater than 1 |
| Answer» E. | |
| 117. |
_A 600 mm square bearing plate settles by 15 mm in plate load test on a cohesionless soil under an intensity of loading of 0.2 N/ram2. The settlement of a prototype shallow footing 1 m square under the same intensity of loading is$? |
| A. | 15 mm |
| B. | between 15 mm and 25 mm |
| C. | 25 mm |
| D. | greater than 25 mm |
| Answer» C. 25 mm | |
| 118. |
_Coefficient of earth pressure at rest is$? |
| A. | less than active earth pressure but greater than passive earth pressure |
| B. | greater than active earth pressure but less than passive earth pressure |
| C. | greater than both the active earth pressure and passive earth pressure |
| D. | less than both the active and passive earth pressures |
| Answer» C. greater than both the active earth pressure and passive earth pressure | |
| 119. |
_The clay mineral with the largest swelling and shrinkage characteristics is$? |
| A. | kaolinite |
| B. | illite |
| C. | montmorillonite |
| D. | none of the above |
| Answer» D. none of the above | |
| 120. |
Clay layer A with single drainage and coefficient of consolidation Cv takes 6 months to achieve 50% consolidation. The time taken by clay layer B of the same thickness with double drainage and coefficient of consolidation Cv/2 to achieve the same degree of consolidation is$? |
| A. | 3 months |
| B. | 6 months |
| C. | 12 months |
| D. | 24 months |
| Answer» B. 6 months | |
| 121. |
Rise of water table in cohesionless soils upto ground surface reduces the net ultimate bearing capacity approximately by$? |
| A. | 25% |
| B. | 50% |
| C. | 75% |
| D. | 90% |
| Answer» C. 75% | |
| 122. |
Physical properties of a permeant which influence permeability are$? |
| A. | viscosity only |
| B. | unit weight only |
| C. | both viscosity and unit weight |
| D. | none of the above |
| Answer» D. none of the above | |
| 123. |
The average coefficient of permeability of natural deposits$? |
| 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 | |
| 124. |
The total and effective stresses at a depth of 5 m below the top level of water in a swimming pool are respectively$? |
| A. | zero and zero |
| B. | 0.5 kg/cm² and zero |
| C. | 0.5 kg/cm² and 0.5 kg/cm² |
| D. | 1.0 kg/cm² and 0.5 kg/cm² |
| Answer» C. 0.5 kg/cm¬¨‚⧠and 0.5 kg/cm¬¨‚⧠| |
| 125. |
A normally consolidated clay settled 10 mm when effective stress was increased from 100 kN/m2 to 200 kN/ m2. If the effective stress is further increased from 200 kN/ m2 to 400 kN/ m2, then the settlement of the same clay is$? |
| A. | 10 mm |
| B. | 20 mm |
| C. | 40 mm |
| D. | none of the above |
| Answer» B. 20 mm | |
| 126. |
The maximum dry density upto which any soil can be compacted depends upon$? |
| A. | moisture content only |
| B. | amount of compaction energy only |
| C. | both moisture content and amount of compaction energy |
| D. | none of the above |
| Answer» D. none of the above | |
| 127. |
Rankine’s theory of earth pressure assumes that the back of the wall is$? |
| A. | plane and smooth |
| B. | plane and rough |
| C. | vertical and smooth |
| D. | vertical and rough |
| Answer» D. vertical and rough | |
| 128. |
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 | |
| 129. |
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 | |
| 130. |
Rise of water table in cohesionless soils upto ground surface reduces the net ultimate bearing capacity approximately by? |
| A. | 25% |
| B. | 50% |
| C. | 75% |
| D. | 90% |
| Answer» C. 75% | |
| 131. |
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 | |
| 132. |
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/cm¬¨‚⧠and 0.5 kg/cm¬¨‚⧠| |
| 133. |
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 | |
| 134. |
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 | |
| 135. |
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 | |
| 136. |
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 | |
| 137. |
Clay layer A with single drainage and coefficient of consolidation Cv takes 6 months to achieve 50% consolidation. The time taken by clay layer B of the same thickness with double drainage and coefficient of consolidation Cv/2 to achieve the same degree of consolidation is? |
| A. | 3 months |
| B. | 6 months |
| C. | 12 months |
| D. | 24 months |
| Answer» B. 6 months | |
| 138. |
Which of the following soils has more plasticity index ? |
| A. | sand |
| B. | silt |
| C. | clay |
| D. | gravel |
| Answer» D. gravel | |
| 139. |
Sand particles are made of |
| A. | rock minerals |
| B. | kaolinite |
| C. | illite |
| D. | montmorillonite |
| Answer» B. kaolinite | |
| 140. |
Residual soils are formed by |
| A. | glaciers |
| B. | wind |
| C. | water |
| D. | none of the above |
| Answer» E. | |
| 141. |
A soil has a bulk density of 22 kN/m3 and water content 10 %. The dry density of soil is |
| A. | 18.6 kN/m3 |
| B. | 20.0 kN/m3 |
| C. | 22.0 kN/m3 |
| D. | 23.2 kN/m3 |
| Answer» C. 22.0 kN/m3 | |
| 142. |
In the plate loading test for determining the bearing capacity of soil, the size of square bearing plate should be |
| A. | less than 300 mm |
| B. | between 300 mm and 750 mm |
| C. | between 750 mm and 1 m |
| D. | greater than 1 m |
| Answer» C. between 750 mm and 1 m | |
| 143. |
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 | |
| 144. |
Within the consolidation process of a saturated clay |
| A. | a gradual increase in neutral pressure and a gradual decrease in effective pressure takes place and sum of the two is constant |
| B. | a gradual decrease in neutral pressure and a gradual increase in effective pressure takes place and sum of the two is constant |
| C. | both neutral pressure and effective pressure decrease |
| D. | both neutral pressure and effective pressure increase |
| Answer» C. both neutral pressure and effective pressure decrease | |
| 145. |
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 | |
| 146. |
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¬¨‚àû | |
| 147. |
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 | |
| 148. |
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 | |
| 149. |
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 ‚Äö√¢¬ß n ‚Äö√¢¬ß 100 | |
| 150. |
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 | |