Q. The seepage force per unit volume j is given by _______

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Q. The seepage pressure always acts _______

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Q. The effective pressure subjected to seepage pressure is given by _______

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Q. In ______ direction of flow, the effective pressure is increased.

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Q. The quick condition takes place when effective pressure is _______

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Q. The critical hydraulic gradient is given by _______

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Q. The critical hydraulic gradient ic in terms of specific gravity G and voids ratio e is given by ______

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Q. The critical hydraulic gradient ic is unity when the specific gravity G=2.67 and voids ratio e is ______

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Q. A coarse-grained soil has a voids ratio of 0.66 and specific gravity G of 2.65. What will be its critical hydraulic gradient?

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Q. If a soil has a submerged unit weight of 10.69 kN/m³, what will be its critical hydraulic gradient?

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Q. Calculate the height of water table rise in soil mass from a sand stratum of 12m deep from ground level, at which the effective pressure is zero. The water percolates through a soil mass of thickness 5m. The γsat=18.6 kN/m³ and γw=9.81 kN/m³.

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Q. Water is flowing at a rate of 0.04 m³/s in a soil sample of 12m thick and cross section of 50m². The coefficient of permeability is 1.6*10¯³m/s. What will be the seepage pressure?

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Q. Water is flowing at a rate of 0.04 m³/s in a soil sample of 12m thick and cross section of 50m². The coefficient of permeability is 1.6*10¯³m/s. What will be the seepage force?

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Q. Water is flowing at a rate of 0.04 m³/s in a soil sample of 12m thick and cross section of 50m². The coefficient of permeability is 1.6*10¯³m/s. What will be the seepage force per unit volume?

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Q. Water is flowing at a rate of 0.04 m³/s in a soil sample of 12m thick and cross section of 50m². The coefficient of permeability is 1.6*10¯³m/s. The submerged unit weight γ’=9.59 kN/m³. Calculate the effective pressure if flow is in upward direction.

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Q. A soil has voids ratio of 0.78 and critical gradient at which quick sand condition occurs is 0.94. Calculate the specific gravity.

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Q. If a soil has a voids ratio of 0.68 and water percolating through it has a discharge velocity of 1.35*10¯²cm/s. Calculate its seepage velocity.

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Q. If the discharge velocity is 1.35*10¯²cm/s and seepage velocity is 3.95*10¯²cm/s of water through a soil, then what will be its voids ratio?

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Q. Water is flowing at a rate of 0.04 m³/s in a soil sample of 12m thick and cross section of 50m². The coefficient of permeability is 1.6*10¯³m/s. The submerged unit weight γ’=9.59 kN/m³. Calculate the effective pressure if flow is in downward direction.

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Q. What are the types of flow head that exist at any point in a saturated soil mass?

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