10 Questions
What is the primary difference between gross pressure (qg) and net pressure (qn)?
Gross pressure is the total pressure at the base of the foundation, while net pressure is the pressure in excess of the pressure due to the soil
What is the relationship between net ultimate bearing capacity (qnu) and ultimate bearing capacity (qu)?
qnu = qu - Df
Which type of soil failure is associated with a well-defined wedge pattern?
Local shear failure
What is the relationship between safe bearing capacity (qs) and net safe bearing capacity (qns)?
qs = qns + Df
Which of the following is NOT a factor in determining the net safe bearing capacity (qns)?
Soil cohesion (c)
Which type of soil failure is associated with a well-defined failure pattern and is characteristic of dense sand?
General shear failure
What is the primary difference between general shear failure and punching shear failure?
Both a and b
Which of the following is NOT a type of shallow foundation?
Pile foundation
Which foundation type is typically used for structures with heavy and concentrated loads?
Mat foundation
Which code or standard is typically used to design shallow foundations in the United States?
ASCE 7
Test your knowledge on selecting the appropriate type of foundation based on soil characteristics and depth. This quiz covers scenarios of soft clay, compact sand, hard clay, dense sand, loose sand, and rock formations.
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