Geotechnical Engineering Questions and Answers – Constant and Falling Head Permeability Test

Geotechnical Engineering Objective Questions

This set of

1. Falling head permeability test can be used for ___________

A) Coarse-grained soil
B) Less permeable soil
C) Clayey soil
D) All of the mentioned

Answer is B)

2. Which of the following formula is used in Falling head permeability test?

A) Jacky’s formula
B) Louden’s formula
C) Darcy’s law
D) Kozney’s formula

Answer is C)

3. In falling head permeability test apparatus, the water head at any time instant is equal to ____________

A) Difference in the water level
B) Cross-sectional area of pipe
C) Height of permeameter
D) None of the mentioned

Answer is B)

4. In constant permeability test, the length of specimen is measured by ___________

A) Calculating the difference in water level
B) Using Piezometric tube
C) Using measuring scale
D) None of the mentioned

Answer is B)

5. The constant head permeability test is used for ___________

A) Fine-grained soil
B) Coarse-grained soil
C) Clay soil
D) Saturated soil

Answer is B)

6. The laboratory observation falling head test consist of measurements of ____________

A) h1 at an interval of t1 and h2 at an interval of t2
B) Only t1 and t2
C) None of the mentioned
D) All of the mentioned

Answer is A)

7. Which of the following tubes are used in the constant head test?

A) Inlet tube
B) Overflow tube
C) Outlet tube
D) All of the mentioned

Answer is D)

8. In falling head permeability test, change in the head at a time interval dt is denoted as ___________

A) dh
B) –dh
C) h
D) –h

Answer is B)