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GATE CE: Soil Mechanics & Foundation Engineering Champion Quiz 5

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Question 1

Deposit with flocculated structure is formed when

Question 2

When a retaining wall moves away from the back fill, the pressure exerted on the wall is termed as

Question 3

If represent the total horizontal stress, total vertical stress, effective horizontal stress and effective vertical stress on a soil element, respectively, the coefficient of earth pressure at rest is given by

Question 4

The necessary and sufficient condition for a surface to be called as a free surface is

Question 5

Dilatancy correction is required when a strata is

Question 6

A smooth rigid retaining wall moves as shown in the sketch causing the backfill material to fail. The backfill material is homogenous and isotropic, and obeys the Mohr–Coulomb failure criterion. The major principal stress is

Question 7

During the subsurface investigations for design of foundations, a standard penetration test was conducted at 4.5m below the ground surface. The record of number of blows is given below.
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Assuming the water table at ground level, soil as fine sand and correction factor for overburden as 1.0, the corrected ‘N’ value for the soil would be

Question 8

A braced cut, 5m wide and 7.5m deep is proposed in a cohesionless soil deposit having effective cohension

and effective friction angle,

. The first row of struts is to be installed at a depth of 0.5 m below ground surface and spacing between the struts should be 1.5m. If the horizontal spacing of struts is 3m and unit weight of the deposit is 20 kN/m³, the maximum strut load will be

Question 9

A clayey soil has a maximum dry density of 16kN/m³ and optimum moisture content of 12%. A contractor during the construction of core of an earth dam obtained the dry density 15.2kN/m³ and water content 11%. This construction is acceptable because

Question 10

A horizontal jet of water with its cross–sectional area of 0.0028 m² hits a fixed vertical plate with a velocity of 5 m/s. After impact the jet splits symmetrically in a plane parallel to the plane of the plate. The force of impact (in N) of the jet on the plate is

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ESE & GATE CE Foundation Engineering

Sep 25ESE & GATE CE