Which one of the following parameters can be used to estimate the angle of internal friction of a sandy soil?

This question was previously asked in
BPSC AE Paper 5 (Civil) 14 Oct 2022 Official Paper
View all BPSC AE Papers >
  1. Density index
  2. Roughness of particles
  3. Particle size
  4. Particle size distribution

Answer (Detailed Solution Below)

Option 1 : Density index
Free
BPSC AE General Studies Mock Test
4.1 K Users
20 Questions 40 Marks 25 Mins

Detailed Solution

Download Solution PDF

Explanation :

  • The angle of friction between soil particles depends upon the shape, size, roughness, grading, and packaging of particles.
  • For Sand, particle size and shape roughly remain the same and thus it cannot be used to estimate the angle of friction of sandy soil.
  • However, the angle of internal friction would be very high if the sand particle is compactly dense which is indicated by the value of the density index.
  • The density index is the ratio of the difference between the void ratios of a cohesionless soil in its loosest state and existing natural state to the difference between its void ratio in the loosest and densest states.
  • The higher value of the relative index indicates a higher angle of internal friction.

So we can say that parameter that can be used as a rough guide to determine the type of failure in the soil is the Angle of internal friction which is indicated by the value of the density index.

Latest BPSC AE Updates

Last updated on Jun 4, 2025

-> BPSC AE 2025 exam date has been revised. The exam will be conducted on July 5, 6 & 7 now. 

-> Candidates who were facing technical issues while filling form can now fill the BPSC AE application form 2025 without any issue. 

->BPSC AE age limit 2025 has been revised.

->BPSC AE application form 2025  was released on April 30. The last date to fill BPSC AE form 2025 was May 28. 

->BPSC AE interview call letters released for Advt. 32/2024.

->BPSC AE notification 2025 has been released. 

->A total of 1024 vacancies are announced through BPSC AE recruitment 2025

->The BPSC Exam Calendar 2025 has been released for the Assistant Engineer Recruitment.

-> The selection will be based on a written exam and evaluation of work experience.

-> Candidates with a graduation in the concerned engineering stream are eligible for this post.

-> To prepare for the exam solve BPSC AE Previous Year Papers. Also, attempt the BPSC AE Civil  Mock Tests.

Get Free Access Now
Hot Links: teen patti all teen patti master 51 bonus teen patti yas