Soil mechanics and foundation questions with answers
95 multiple-choice questions. Open any question for its answer and explanation.
- The flownet for an earthen dam with 30 m water depth consists of 25 potential drops and 5 flow channels. The coefficient of permeability of dam material is 0.03 mm/sec. The discharge per meter length of dam is
- The average coefficient of permeability of natural deposits
- For proper field control, which of the following methods is best suited for quick determination of water content of a soil mass ?
- Which of the following methods is more suitable for the determination of permeability of clayey soil ?
- If the water content of a fully saturated soil mass is 100%, then the voids ratio of the sample is
- Dispersed type of soil structure is an arrangement comprising particles having
- Physical properties of a permeant which influence permeability are
- A cylindrical specimen of saturated soil failed under an axial vertical stress of 100 kN/m2 when it was laterally un-confmed. The failure plane was inclined to the horizontal plane at an angle of 45°. The values of cohesion and angle of internal friction for the soil are respectively
- If the volume of voids is equal to the volume of solids in a soil mass, then the values of porosity and voids ratio respectively are
- Unconfmed compressive strength test is
- In a triaxial compression test when drainage is allowed during the first stage (i. e. application of cell pressure) only and not during the second stage (i.e. application of deviator stress at constant cell pressure), the test is known as
- A normally consolidated clay settled 10 mm when effective stress was increased from 100 kN/m2 to 200 kN/m2. If the effective stress is further increased from 200 kN/m2 to 400 kN/m2 , then the settlement of the same clay is
- The total discharge from two wells situated near to each other is
- Direct measurement of permeability of the specimen at any stage of loading can be made
- The rise of water table below the foundation influences the bearing capacity of soil mainly by reducing
- 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
- The total and effective stresses at a depth of 5 m below the top level of water in a swimming pool are respectively
- Due to a rise in temperature, the viscosity and the unit weight of the percolating fluid are reduced to 60% and 90% respectively. If other things remain constant, the coefficient of permeability
- At liquid limit, all soils possess
- Sensitivity of a soil can be defined as
- The most suitable method for drainage of fine grained cohesive soils is
- In a deposit of normally consolidated clay
- Which of the following methods is most accurate for the determination of the water content of soil ?
- The maximum dry density upto which any soil can be compacted depends upon
- Toughness index is defined as the ratio of