Environmental Engineering Practice Test 2

1. What is the dimension formula of mean velocity gradient?

2. The superficial velocity in a stratified bed is equal to __________

3. What is the effective size of Anthracite when used as a filter material?

4. In which type of filter, water flows in upward direction?

5. How the performance of the rapid sand filter can be improved?

6. Which of the following is the expression of the Carmen equation where symbols have their usual meanings?

7. In which of the following filter, two layers filtering media is provided for filtration?

8. The uniformity characteristics of sand expressed in terms of __________

9. What is the size of sand used in a dual media filter?

10. Which device is used for screening stored water which do not contain microscopic sized particles?