246.  Si particles
A. show dilatancy
B. swell when moist
C. possess high strength when dry
D. disintegrate easily.

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247.  The specific yield of soil depends upon
A. compaction of stratum
B. distribution of pores
C. shape and size of particles
D. all the above.

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248.  The shearing strength of a cohesionless soil depends upon
A. dry density
B. rate of loading
C. confining pressure
D. nature of loading.

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249.  Assertion A : Alluvial soils are very fertile Reason R : Alluvium contains a lot of water and oxygen Codes:
A. Both A and R are true and R is the correct explanation of A.,
B. Both A and R are true but R is not a correct explanation of A.,
C. A is true but R is false.
D. A is false but R is true.

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250.  Consider the following statements regarding using dispensing agent for preparing soil suspension. I. Sodium oxalate 2. Sodium silicate 3. Tetra sodium pyrophosphate 4. Sodium hexameta phosphate Of these statements:
A. 1, 2 and 3 are correct
B. 2, 3 and 4 are correct
C. 1, 3 and 4 are correct
D. 1, 2, 3 and 4 are correct.

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251.  Consider the following statements regarding particle size distribution curves. 1. The size DIO is called effective diameter 2. The size D60 is called effective size 3. The ratio of- is called coefficient of uniformity 4. For uniformly graded soils the coefficient of uniformity is nearly unity. Of these statements:
A. 1, 2 and 3 are correct.
B. 2, 3 and 4 are correct,
C. 1, 3 and 4 are correct.
D. 2, 3 and 4 are correct.

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252.  Consider the following statements regarding the compressibility of silts and clays :1. Low compressibility if liquid limit is less than 30 2. Medium compressibility if liquid limit is greater than 30 and less than 50 3. High compressibility if liquid is greater than 50 Of these statements:
A. 1 alone is correct
B. 1 and 2 are correct
C. 2 alone is correct
D. 2 and 3 are correct.

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