Soil-Origin and Properties 2

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1. Which among the following is a quick method of determination of water content of soil

A) oven dry
B) pycnometer 
C) calcium carbide
D) none of these

... Answer is C
Wet soil+ calcium carbide-->acetylene gas; amount of acetylene gas is directly proportional to water content of soil

 

2. Core cutter method is suitable for

A) any soil
B) clay and silt
C) clay only
D) sand only

... Answer is C

 

3. Property of soil which is of great importance in civil engineering aspect

A) shear strength
B) permeability
C) compression
D) consolidation

... Answer is A

 

4. If soil pores are completely full of air, it is said to be

A) fully saturated soil
B) wet soil
C) partially saturated soil
D) dry soil

... Answer is D

 

5. Void ratio for saturated soil is equal to product of 

A) water content and air content
B) water content and specific gravity
C) water content and porosity
D) water content and percentage air void

... Answer is B
Se=WG
 

6. Maximum size of clay particles_____mm

A) .0002
B) .002
C) .02
D) .2

... Answer is B 

 

7. Specific gravity of a soil is the ratio of unit weight of soil solids to that of water at a temperature of__

A) 4°C
B) 17°C
C) 27°C
D) 35°C

... Answer is C 

 

8. Sand replacement method is used for

A) clay only
B) sand only
C) both
D) any soil

... Answer is D 

 

9. If value of void ratio for a soil is less, it indicates

A) soil is tightly packed
B) shear strength is high
C) both A and B
D) none of these

... Answer is C 

 

10. Specific gravity of a soil sample is 2.7 and it's void ratio is .945. of it is fully saturated the moisture content of the soil will be______

A) .25
B) .35
C) .45
D) .55

... Answer is B
Se=WG 
 

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