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Home⇒ Engineering⇒
Soil mechanics and foundation engg
1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
Q21 ⇒ Back fill with a sloping surface exerts a total active pressure Pa on the wall of height Hand acts at. H/3 above the base parallel to base [other wrong options] [Discuss in forum] H/4 above the base parallel to base H/2 above the base parallel to base H/5 above the base parallel to base. |
Q22 ⇒ A coarse-grained soil has a voids ratio 0.75, and specific gravity as 2.75. The critical gradient at which quick sand condition occurs, is. 1.00 [other wrong options] [Discuss in forum] 0.25 0.50 0.75 |
Q23 ⇒ Pick up the in-correct statement from the following: The soils which contain montmorillonite minerals. possess high coefficient of internal coefficient [other wrong options] [Discuss in forum] swell more when wet shrink more when dry possess high plasticity |
Q24 ⇒ The ratio of the volume of voids to the total volume of the given soil mass, is known. porosity [other wrong options] [Discuss in forum] specific gravity void ratio water content. |
Q25 ⇒ The equation τ = C + σ tan φ is given by. Coulomb [other wrong options] [Discuss in forum] Rankine Culaman Mohr. |
Q26 ⇒ The active earth pressure of a soil is proportional to (where φ is the angle of friction of the soil). tan2 (45° - Ï/2) [other wrong options] [Discuss in forum] tan (45° - Ï) tan2 (45° + Ï/2) tan (45° + Ï) |
Q27 ⇒ Pick up the correct statement from the following: All the above. [other wrong options] [Discuss in forum] The property of a soil that enables it to become stiff in a relatively short time on standing is called thixotropy The ratio of shear strength in natural state to the remoulded shear strength under undrained conditions, is called degree of sensitivity. The tendency of dense sand to expand on application of shearing load, is known as dilatancy |
Q28 ⇒ The maximum value of effective stress in the past divided by the present value, is defined as over consolidation ratio (OCR). The O.C.R. of an over consolidated clay is. more than 1 [other wrong options] [Discuss in forum] less than 1 1 None of these. |
Q29 ⇒ Pick up the correct statement from the following: All the above. [other wrong options] [Discuss in forum] Illite bond is weaker than Kaolinite bond Illite bond is stronger than montmorillonite bond Illites do not swell when wet |
Q30 ⇒ Degree of saturation of a natural soil deposit having water content 15%, specific gravity 2.50 and void ratio 0.5, is. 75% [other wrong options] [Discuss in forum] 50% 60% 80% |
Q31 ⇒ Pick up the correct statement from the following: All the above. [other wrong options] [Discuss in forum] The phenomenon of quicksand generally occurs in the cohesionless soil At critical hydraulic gradient, the saturated sand becomes quick The quick sand occurs more in fine sand and silt than coarse material |
Q32 ⇒ A soil has bulk density 2.30 g/cm3 and water content 15 per cent, the dry density of the sample, is. 2.0 g/cm3 [other wrong options] [Discuss in forum] 1.0 g/cm2 1.5 g/cm3 2.5 g/cm3 |
Q33 ⇒ If dry density, water density and specific gravity of solids of a given soil sample are 1.6 g/cc, 1.84 g/cc and 2.56 respectively, the porosity of the soil sample, is. 0.375 [other wrong options] [Discuss in forum] 0.370 0.380 0.390 |
Q34 ⇒ The weight of a pycnometer containing 400 g sand and water full to the top is 2150 g. The weight of pycnometer full of clean water is 1950 g. If specific gravity of the soil is 2.5, the water content is. 20% [other wrong options] [Discuss in forum] 5% 10% 15% |
Q35 ⇒ Pick up the correct statement from the following: All the above. [other wrong options] [Discuss in forum] O.M.C. refers to the moisture corresponding to the maximum point on the moisture content dry density curve The line which shows moisture content dry density relation for soil containing a constant percentage of air voids, is known as air void line The free fall of hammer for compaction is 30.5 cm |
Q36 ⇒ The ratio of settlement at any time 't' to the final settlement, is known as. degree of consolidation [other wrong options] [Discuss in forum] co-efficient of consolidation consolidation index consolidation of undisturbed soil. |
Q37 ⇒ If the coefficients of volume change and compressibility of a soil sample are respectively 6.75 x 10-2 and 3 x 10-2, the void ratio of the soil sample, is. 1.25 [other wrong options] [Discuss in forum] 1.10 1.15 1.20 |
Q38 ⇒ The degree of saturation of the soil sample stated in Q. No, 216, is. 64% [other wrong options] [Discuss in forum] 60% 62% 66% |
Q39 ⇒ Soil classification of composite soils, exclusively based on the particle size distribution, is known. textural classification [other wrong options] [Discuss in forum] particle classification High Way Research Board classification unified soil classification. |
Q40 ⇒ The soil which contains finest grain particles, is. clay. [other wrong options] [Discuss in forum] coarse sand fine sand silt |
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