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This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Environmental Engineering knowledge and support exam preparation. Choose a topic below to get started.
1. |
The thickness of the base material of a rapid sand filter on which filter media are supported is __________ |
A. | 45-60cm |
B. | 20-80cm |
C. | 30-75cm |
D. | 10-30cm |
Answer» B. 20-80cm | |
2. |
The minimum depth of sand of a rapid sand filter is given by __________ |
A. | Stokes formula |
B. | Clark s formula |
C. | Hudson formula |
D. | Emden formula |
Answer» D. Emden formula | |
3. |
What is the value of the uniformity coefficient in a rapid sand filter? |
A. | 1 |
B. | 1.5 |
C. | 2 |
D. | 2.5 |
Answer» C. 2 | |
4. |
The finer the suspended impurities to be removed ___________ |
A. | Larger will be the sand size |
B. | Smaller will be the sand size |
C. | Smaller will be the surface area of sand grains |
D. | Narrow will be the sand depth of the bed |
Answer» C. Smaller will be the surface area of sand grains | |