# Sewage treatment units are normally designed for______________?

**Sewage treatment units are normally designed for______________?**

A. 5-10 years

C. 30-40 years

D. 40-50 years

**B. 15-20 years(Correct)**C. 30-40 years

D. 40-50 years

Answering Exams

A. 5-10 years

**B. 15-20 years(Correct)**

C. 30-40 years

D. 40-50 years

C. 30-40 years

D. 40-50 years

- A quantity measured in the C.G.S system of units has dimensions M”2L3 T3/2. What numerical factor would be required to convert the quantity to SI units ?
- Ctrl + S Shortcut is used in Microsoft Word to_____________?
- Dried sewage after treatment is used as____________________?
- Hydraulic structures are designed for a safe flow of flood. The floods which are equal in designed magnitude life of the project is called _____________________?
- If 2% solution of a sewage sample is incubated for 5 days at 20°C and depletion of oxygen was found to be 5 ppm, B.O.D. of the sewage is____________________?
- In a BOD test, 1.0 ml of raw sewage was diluted to 100 ml and the dissolved oxygen concentration of diluted sample at the beginning was 6 ppm and it was 4 ppm at the end of 5 day incubation at 20°C. The BOD of raw sewage will be___________?
- In SI units, the units of force and energy are respectively___________________?
- Sewage treatment units are designed for_______________?
- The biochemical treatment applied to sewage effluents is a process of__________________?
- When you insert a comment in a document, the comment appears in a___________?

Comments