The GATE Grind

GATE Geotechnical Engineering: Compaction and one-dimensional consolidation – Previous Year Questions

6 GATE previous year questions on Compaction and one-dimensional consolidation (Geotechnical Engineering, Civil Engineering) with answers and explanations, from every paper.

  1. GATE 2023 CE (CE1) Q40 (2 marks, Multiple choice) – With reference to the compaction test conducted on soils, which of the following is INCORRECT?
  2. GATE 2024 CE (CE1) Q34 (1 mark, Numerical answer) – An embankment is constructed with soil by maintaining the degree of saturation as 75% during compaction. The specific gravity of soil is 2.68 and the…
  3. GATE 2024 CE (CE1) Q53 (2 marks, Numerical answer) – The total primary consolidation settlement (S c) of a building constructed on a 10 m thick saturated clay layer is estimated to be 50 mm. After 300…
  4. GATE 2025 CE (CE2) Q32 (1 mark, Numerical answer) – 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…
  5. GATE 2025 CE (CE1) Q38 (2 marks, Multiple choice) – In an oedometer apparatus a specimen of fully saturated clay has been consolidated under a vertical pressure of 100 kPa and is at equilibrium state.…
  6. GATE 2026 CE (CE2) Q56 (2 marks, Numerical answer) – For a clayey soil stratum, the time required for degree of consolidation from 25 % to 50 % is 30 days. The total time (in days) required for 90 %…