If there is no impervious boundary at the bottom of a hydraulic structure, strea

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Question
If there is no impervious boundary at the bottom of a hydraulic structure, stream lines tend to follow :
Options
A. a straight line
B. a parabola
C. a semi-ellipse
D. a semi-circle.

Correct Answer

a semi-ellipse

Soil Mechanics and Foundation Engineering problems

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1. Pick up the correct definition from the following:
Options
A. The lateral pressure exerted by the soil when the retaining wall moves away from the back fill, is generally known as active earth pressure of the soil
B. The lateral pressure exerted by the soil when the retaining wail moves towards the soil, is generally known as 'Passive earth pressure of the soil'
C. The lateral pressure exerted by the soil when the retaining wall has no movement relative to the back fill, is known as 'earth pressure at rest of the soil'
D. All the above.

3. Pick up the correct statement from the following:
Options
A. Coefficient of compressibility is the decrease in void ratio per unit increase of pressure
B. The percent settlement at any time is called degree of consolidation
C. Time factor is a dimensionless quantity
D. The initial curve on either side of the point of unloading and reloading is called 'virgin curve'
E. All the above.

4. The maximum pressure which a soil can carry without shear failure, is called
Options
A. safe bearing capacity
B. net safe bearing capacity
C. net ultimate bearing capacity
D. ultimate bearing capacity.

7. For determining the ultimate bearing capacity of soil, the recommended size of a square bearing plate to be used in load plate test should be 30 to 75 cm square with a minimum thickness of
Options
A. 5 mm
B. 10 mm
C. 15 mm
D. 20 mm
E. 25 mm

10. Failure of a slope occurs only when total shear force is
Options
A. equal to total shearing strength
B. greater than total shearing strength
C. less than total shearing strength
D. none of these.

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