Question

Arrange the following soil particles in descending order of their diameter:
(A) Clay
(B) Silt
(C) Fine sand
(D) Coarse sand
Choose the correct answer from the options given below:

• A. (A), (B), (C), (D)
• B. (A), (C), (B), (D)
• C. (D), (C), (B), (A)
• D. (B), (A), (D), (C)

Answer 1

The Correct Option is C

The correct answer is (3) (D), (C), (B), (A).

Soil particles vary in size, and their classification is based on their diameter. The general order from largest to smallest particle size is as follows:

Coarse sand (D): Coarse sand has the largest particle size among the options.

Fine sand (C): Fine sand has smaller particles than coarse sand, but still larger than silt and clay.

Silt (B): Silt particles are smaller than sand particles, but larger than clay particles.

Clay (A): Clay has the smallest particle size, and it is the finest soil particle.

Thus, the correct sequence of soil particles in descending order of their diameter is (D) Coarse sand, (C) Fine sand, (B) Silt, (A) Clay.

Therefore, the correct answer is (3) (D), (C), (B), (A).

Answer 2

The descending order of soil particle sizes is: 
Coarse sand > Fine sand > Silt > Clay. 
This order is based on particle diameter, with coarse sand being the largest and clay the smallest.