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Concept drill

permeability

GATE Civil Engineering · Geotechnical Engineering - Permeability and Seepage · 2018-2026

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2026 Q31

For a liquid, the permeability of a sandy soil having a void ratio of 0.60 was determined as 0.14 cm/s. Considering the same liquid and by using Taylor's equation, the permeability...

mediumanswer key
2025 Q15

The most suitable test for measuring the permeability of clayey soils in the laboratory is _________.

mediumanswer key
2025 Q58

A 60 cm diameter well completely penetrates a confined aquifer of permeability 5 x 10⁻⁴ m/s. The length of the strainer (spanning the entire thickness of the aquifer) is 10 m. The...

mediumanswer key
2025 Q59

Two soils of permeabilities k₁ and k2 are placed in a horizontal flow apparatus, as shown in the figure. For Soil 1, L1 = 50 cm, and k₁ = 0.055 cm/s; for Soil 2, L2 = 30 cm, and k2...

mediumanswer key
2025 PYQ

A 6 m thick clay stratum has drainage at both its top and bottom surface due to the presence of sand strata. The time to complete $50 \%$ consolidation is 2 years. The coefficient...

mediumbasic explanation
2025 PYQ

The most suitable test for measuring the permeability of clayey soils in the laboratory is ___________

easyanswer keybasic explanation
2024 Q45

Consider the statements P, Q, and R. P: Compacted fine-grained soils with flocculated structure have isotropic permeability. Q: Phreatic surface/line is the line along which the po...

mediumanswer key
2024 PYQ

Consider the statements P, Q, and R. P: Compacted fine-grained soils with flocculated structure have isotropic permeability. Q: Phreatic surface/line is the line along which the po...

mediumanswer key
2023 Q19

A vertical sheet pile wall is installed in an anisotropic soil having coefficient of horizontal permeability, $k_H$ and coefficient of vertical permeability, $k_V$. In order to dra...

mediumanswer key
2023 PYQ

A vertical sheet pile wall is installed in an anisotropic soil having coefficient of horizontal permeability, 𝑘 𝐻 and coefficient of vertical permeability, 𝑘 𝑉 . In order to dr...

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2022 PYQ

Four different soils are classified as CH, ML, SP, and SW, as per the Unified Soil Classification System. Which one of the following options correctly represents their arrangement...

easyanswer keybasic explanation
2019 Q17

An anisotropic soil deposit has coefficient of permeability in vertical and horizontal directions as $k_z$ and $k_x$, respectively. For constructing a flow net, the horizontal dime...

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2018 Q21

A sheet pile has an embedment depth of 12 m in a homogeneous soil stratum. The coefficient of permeability of soil is 10⁻⁶ m/s. Difference in the water levels between the two sides...

hardanswer key
2018 Q33

Three soil specimens (Soil 1, Soil 2 and Soil 3), each 150 mm long and 100 mm diameter, are placed in series in a constant head flow set-up as shown in the figure. Suitable screens...

mediumanswer key