Permeability MCQ 1

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1. Property of soil to permit the seepage of water through interconnected voids is called_________

A) Porosity
B) Capilarity
C) Permeability
D) None of thses

... Answer is C


 

2. Which one of the following is highly permeable?

A) Sand
B) Stiff clay
C) Gravel
D) Clay

... Answer is C
Gravel is highly permeable, because water can quickly flow through the large voids or gaps in the gravel. However it will take quite a time for water to seep through stiff clay. 
 

3. Which of the following influences permeability?

A) Void Ratio
B) Degree of saturation
C) Void Ratio
D) All of these

... Answer is D

 

4. With rise of temperature permeability_______

A) Increases
B) Decreases
C) No change
D) None of the above

... Answer is A

 

5. Permeability of gravel is _______

A) 10^-1
B) 10^-13
C) 1
D) Both A & C

... Answer is D

 

6. The unit of intristic permeability is ______

A) m²
B) Cm²
C) darcy
D) All of thses

... Answer is C

 

7. In which of the following soils the flow can be assumed laminar?

A) Clay only
B) Clay and silt only
C) Clay silt and Sand only
D) Clay siit sand and gravel

... Answer is C

 

8. 1 Darcy = __________ m^2

A) 9.87 x 10^-13
B) 9.81 x 10^-14
C) 9.81 x 10^-15
D) None of thses

... Answer is A 
description
 

9. Discharge velocity occuring under unit hydraulic gradient is called ____________

A) Coefficient of permeability
B) Coefficient of percolation
C) Coefficient of intristic permeability
D) None of the above

... Answer is A

 

10. Unit of coefficient of permeability is ______

A) cm/s
B) m/s
C) m/hour
D) All of these

... Answer is D

 

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