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Consider the following statements regarding sand as filter material.
1. It should be free from clay or silt
2. Organic matter should be present in the sand
3. It should be nonuniform
Which of the above statement is/are correct?
1. It should be free from clay or silt
2. Organic matter should be present in the sand
3. It should be nonuniform
Which of the above statement is/are correct?
- a)1, 2
- b)1 only
- c)2, 3
- d)1, 2, 3
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
Consider the following statements regarding sand as filter material.1....
Explanation: Sand used as a filter material should be free from clay, silt, organic matter or other impurity. It should be uniform and of proper size.
Most Upvoted Answer
Consider the following statements regarding sand as filter material.1....
Statement 1: It should be free from clay or silt
Sand as a filter material should be free from clay or silt. This is because clay and silt particles are very fine and have a tendency to clog the filter bed, reducing its efficiency. These fine particles can block the pores in the sand, preventing proper flow of water through the filter. Therefore, it is important to ensure that the sand used for filtration is free from clay or silt.
Statement 2: Organic matter should be present in the sand
This statement is incorrect. Organic matter should not be present in the sand used as a filter material. Organic matter can decompose over time and release organic compounds into the filtered water, which can be harmful or undesirable. Additionally, organic matter can also provide a breeding ground for bacteria, further compromising the quality of the filtered water. Therefore, it is important to use sand that is free from organic matter.
Statement 3: It should be nonuniform
This statement is incorrect. The sand used as a filter material should be uniform in size. The uniformity of the sand particles allows for consistent flow of water through the filter bed and enhances the filtration process. If the sand particles are nonuniform, there can be variations in the size of the void spaces between the particles, which can lead to uneven flow and reduced efficiency of the filter. Therefore, it is important to use sand that is uniform in size for filtration purposes.
Conclusion
In conclusion, statement 1 is correct as sand used as a filter material should be free from clay or silt. However, statement 2 and statement 3 are incorrect. Organic matter should not be present in the sand and the sand should be uniform in size for effective filtration.
Sand as a filter material should be free from clay or silt. This is because clay and silt particles are very fine and have a tendency to clog the filter bed, reducing its efficiency. These fine particles can block the pores in the sand, preventing proper flow of water through the filter. Therefore, it is important to ensure that the sand used for filtration is free from clay or silt.
Statement 2: Organic matter should be present in the sand
This statement is incorrect. Organic matter should not be present in the sand used as a filter material. Organic matter can decompose over time and release organic compounds into the filtered water, which can be harmful or undesirable. Additionally, organic matter can also provide a breeding ground for bacteria, further compromising the quality of the filtered water. Therefore, it is important to use sand that is free from organic matter.
Statement 3: It should be nonuniform
This statement is incorrect. The sand used as a filter material should be uniform in size. The uniformity of the sand particles allows for consistent flow of water through the filter bed and enhances the filtration process. If the sand particles are nonuniform, there can be variations in the size of the void spaces between the particles, which can lead to uneven flow and reduced efficiency of the filter. Therefore, it is important to use sand that is uniform in size for filtration purposes.
Conclusion
In conclusion, statement 1 is correct as sand used as a filter material should be free from clay or silt. However, statement 2 and statement 3 are incorrect. Organic matter should not be present in the sand and the sand should be uniform in size for effective filtration.
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Consider the following statements regarding sand as filter material.1. It should be free from clay or silt2. Organic matter should be present in the sand3. It should be nonuniformWhich of the above statement is/are correct?a)1, 2b)1 onlyc)2, 3d)1, 2, 3Correct answer is option 'B'. Can you explain this answer?
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