Foundation Selection Quiz

What is the primary difference between gross pressure (qg) and net pressure (qn)?

Gross pressure is the pressure exerted by the foundation, while net pressure is the pressure exerted by the soil

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 (correct)

Gross pressure is the pressure exerted by the building, while net pressure is the pressure exerted by the foundation

Gross pressure includes the weight of the soil, while net pressure does not

What is the relationship between net ultimate bearing capacity (qnu) and ultimate bearing capacity (qu)?

qnu = qu / Df

qnu = qu * Df

qnu = qu - Df (correct)

qnu = qu + Df

Which type of soil failure is associated with a well-defined wedge pattern?

General shear failure

Punching shear failure

Local shear failure (correct)

All of the above

What is the relationship between safe bearing capacity (qs) and net safe bearing capacity (qns)?

qs = qns + Df Signup and view all the answers

Which of the following is NOT a factor in determining the net safe bearing capacity (qns)?

Soil cohesion (c) Signup and view all the answers

Which type of soil failure is associated with a well-defined failure pattern and is characteristic of dense sand?

General shear failure Signup and view all the answers

What is the primary difference between general shear failure and punching shear failure?

Both a and b Signup and view all the answers

Which of the following is NOT a type of shallow foundation?

Pile foundation Signup and view all the answers

Which foundation type is typically used for structures with heavy and concentrated loads?

Mat foundation Signup and view all the answers

Which code or standard is typically used to design shallow foundations in the United States?

ASCE 7 Signup and view all the answers

Foundation Selection Quiz

Questions and Answers

What is the primary difference between gross pressure (qg) and net pressure (qn)?

What is the relationship between net ultimate bearing capacity (qnu) and ultimate bearing capacity (qu)?

Which type of soil failure is associated with a well-defined wedge pattern?

What is the relationship between safe bearing capacity (qs) and net safe bearing capacity (qns)?

Which of the following is NOT a factor in determining the net safe bearing capacity (qns)?

Which type of soil failure is associated with a well-defined failure pattern and is characteristic of dense sand?

What is the primary difference between general shear failure and punching shear failure?

Which of the following is NOT a type of shallow foundation?

Which foundation type is typically used for structures with heavy and concentrated loads?

Which code or standard is typically used to design shallow foundations in the United States?

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