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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. |
| Q1 ⇒ Rankine's theory of earth pressure assumes that the back of the wall is vertical and smooth [other wrong options] [Discuss in forum] |
| Q2 ⇒ The coefficient of active earth pressure for a loose sand having an angle of internal friction of 30° is 1/3 [other wrong options] [Discuss in forum] |
| Q3 ⇒ The major principal stress in an element of cohesionless soil within the backfill of a retaining wall is vertical if the soil is in an active state of plastic equilibrium [other wrong options] [Discuss in forum] |
| Q4 ⇒ The effect of cohesion on a soil is to reduce the active earth pressure in-tensity but to increase the passive earth pressure intensity [other wrong options] [Discuss in forum] |
| Q5 ⇒ 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 12° [other wrong options] [Discuss in forum] |
| Q6 ⇒ Coefficient of earth pressure at rest is greater than active earth pressure but less than passive earth pressure [other wrong options] [Discuss in forum] |
| Q7 ⇒ Bishop's method of stability analysis assumes the slip surface as an arc of a circle [other wrong options] [Discuss in forum] |
| Q8 ⇒ Allowable bearing pressure for a founda¬tion depends upon both allowable settlement and ultimate bearing capacity [other wrong options] [Discuss in forum] |
| Q9 ⇒ The rise of water table below the foundation influences the bearing capacity of soil mainly by reducing cohesion and effective unit weight of soil [other wrong options] [Discuss in forum] |
| Q10 ⇒ Terzaghi's bearing capacity factors Nc, Nq and Nr are functions of angle of internal friction only [other wrong options] [Discuss in forum] |
| Q11 ⇒ In the plate loading test for determining the bearing capacity of soil, the size of square bearing plate should be between 300 mm and 750 mm [other wrong options] [Discuss in forum] |
| Q12 ⇒ Select the incorrect statement. Bearing capacity of a soil depends upon the amount and direction of load. [other wrong options] [Discuss in forum] |
| Q13 ⇒ 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 between 15 mm and 25 mm [other wrong options] [Discuss in forum] |
| Q14 ⇒ 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 50 mm [other wrong options] [Discuss in forum] |
| Q15 ⇒ Rise of water table in cohesionless soils upto ground surface reduces the net ultimate bearing capacity approximately by 50% [other wrong options] [Discuss in forum] |
| Q16 ⇒ Contact pressure beneath a rigid footing resting on cohesive soil is more at edges compared to middle [other wrong options] [Discuss in forum] |
| Q17 ⇒ The internal molecular attraction of a soil, the cohesion. is more in well compacted clays [other wrong options] [Discuss in forum] |
| Q18 ⇒ According to IS specifications, the minimum depths of foundation in sand and clay should be respectively 800 mm and 900 mm [other wrong options] [Discuss in forum] |
| Q19 ⇒ A compacted soil sample using 10% moisture content has a weight of 200 g and mass unit weight of 2.0 g/cm3. If the specific gravity of soil particles and water are 2.7 and 1.0, the degree of saturation of the soil is. 55.6% [other wrong options] [Discuss in forum] |
| Q20 ⇒ Accurate determination of water content, is made by. oven-drying method. [other wrong options] [Discuss in forum] |
| Or |