Permeability MCQ 3

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1. Permeability of partially saturated soil is_______than fully saturated soil.

A) Equal
B) Greater
C) Less
D) None of these

... Answer is C
Permeability of partially saturated soil is less compare to fully saturated soil because of interfering air blocking

 

2. Which type of flow is more permeable?

A) Flow parallel to the bedding plates
B) Flow perpendicular to bedding plates
C) Both are equally permeable
D) None of these

... Answer is A

 

3. For large engineering projects permeability is determined accurately by,

A) Constant head test
B) Variable head test
C) Pumping out test
D) Pumping in test

... Answer is A

 

4. Pumping in test is used for testing

A) Rocks
B) Individual stratum
C) Large engineering projects
D) Both A and B

... Answer is D

 

5. The property of a curve being tortuous (twisted; having many turns)

A) Permeability
B) Tortuosity
C) Seepage
D) None of these

... Answer is B
With increase in tortuosity permeablity decreases
 

6. Unit of Hydraulic gradient is_______ 

A) /m2
B) m2
C) m
D) No unit

... Answer is D 

 

7. Unit of permeability is_____

A) cm/sec
B) m/s
C) m/hour
D) All the above

... Answer is D 

 

8. What happens when adsorbed water in soil increases?

A) Permeability increases
B) Permeability decreases
C) No change in permeability 
D) None of these

... Answer is B 

 

9. In geotechincal engineering Total head equals

A) Pressure head + Datum head
B) Pressure head + Velocity head + Datum head
C) Pressure head + Velocity head
D) None of these

... Answer is A
Since water seeps through soil
 

10. Why is the permeability of clay low?

A) High density
B) Less cohesion
C) Small interconnected voids
D) All of these

... Answer is C
Permeability of clay is low because of small interconnected voids Click here to know more
 

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