Q. For an angle of internal friction of 300, the values of coefficients of active and passive earth pressures are given by a _____ and ____ respectively.

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Q. Compute the active pressure intensity when the backfill has unit weight of 18 KN/m³ and height of wall is 6 m. The angle of internal friction is 30°.

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Q. Compute the passive pressure intensity when the backfill has unit weight of Kₐ=\(\frac{1}{3}\) and height of wall is 6 m. The coefficient of active earth pressure Kₐ=\(\frac{1}{3}.\)

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Q. The water table is at the ground level and backfill has saturated unit weight as 22KN/m³. The height of wall is 6m and Kₐ=\(\frac{1}{3}.\) Find the pressure intensity.

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Q. The water table is at the ground level and backfill has saturated unit weight as 22KN/m³. The height of wall is 6m and Kₐ=1/3. Find the pressure intensity, if free water stands on other face of wall.

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Q. Compute the active pressure intensity when the backfill has unit weight of 18 KN/m³ and height of wall is 6 m. The angle of internal friction is 300. The backfill has surcharge of 36 KN/m².

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Q. Compute the passive pressure intensity when the backfill has unit weight of 18 KN/m³ and height of wall is 6 m. The angle of internal friction is 300. The backfill has surcharge of 36 KN/m².

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Q. If the backfill has unit weight of 18 KN/m² and surcharge of 36 KN/m², then find the equivalent height of surcharge.

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Q. If a backfill has unit weight of 12 KN/m³ and the equivalent height of surcharge as 3m, then find the surcharge.

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Q. When the height of retaining wall is 6m, then the distance of point of application of the resultant pressure from the base is ________

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Q. Find the critical height of an unsupported vertical cut in cohesive soil of C= 10KN/m² and γ=20KN/m².

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Q. For a soil deposit, C=20 KN/m² and is found be to a purely cohesive soil. It has a critical height of an unsupported vertical cut as 4m. Find the unit weight of soil.

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Q. For a saturated clay of 20KN/m³ and cᵤ=24 kN/m², find the height of tension cracks.

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Q. For a saturated clay cᵤ=18KN/m², find the height of tension cracks is 7m. Find the saturated unit weight.

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Q. For an angle of internal friction of 30°, find the flow value Nφ

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Q. The wedge theory of earth pressure is based on the concept of _________

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Q. Which of the following is a basic assumption of the wedge theory?

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Q. The force acting on a wedge of soil are ____________

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Q. The active lateral pressure of intact saturated clays is calculated by assuming __________

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Q. The forces acting on the trial wedge which is used for finding Rankine’s active earth pressure is __________

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