For a normally consolidated clay layer, the preconsolidation pressure is approximately equal to the:
Correct answer: C. Current effective overburden pressure
- A. Present pore water pressure
- B. Current total overburden pressure
- C. Current effective overburden pressure
- D. Shear strength at failure
Explanation
In normally consolidated clay, the current effective overburden pressure is the greatest effective stress the soil has experienced. A preconsolidation pressure greater than the current effective stress indicates overconsolidated clay.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Soil Mechanics and Foundations
Soil mechanics examines index properties, phase relationships, classification, permeability, seepage, compaction, consolidation, shear strength and earth pressure. Foundations apply these principles to bearing capacity, settlement and shallow or deep foundation selection, with clear distinction between compaction, which expels air, and consolidation, which expels water over time.
Practise Soil Mechanics and Foundations
78 free Soil Mechanics and Foundations MCQs from Civil Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Civil Engineering questions like this
Civil Engineering is on 3 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Soil Mechanics and Foundations questions
During standard mechanical compaction of a partially saturated soil, the main material expelled from the voids is:
The quicksand condition in a saturated soil occurs when:
According to Darcy's law, the discharge velocity through a saturated soil is directly proportional to the:
In the Mohr-Coulomb strength equation, the term σ tan φ represents the:
For a cohesionless soil with a friction angle of 30 degrees, Rankine's active earth pressure coefficient is approximately:
A deep pile foundation is generally preferred over a shallow foundation when: