♡ Login
Home
Previous Papers
★
MCQs
Civil Engineering
Solid Waste and Waste Water Treatment
The minimum dissolved oxygen which should always ...
Que.
The minimum dissolved oxygen which should always be presents in water in order to save the aquatic life is :
A.
1 ppm
B.
4 ppm
C.
10 ppm
D.
40 ppm
Right Answer is :
✓ B. 4 ppm
⚑ Report
Views 👍 :512
Share :
Copy ☍
✒ To discuss this topic
Comment
✕ Cancel
➤ Post Comment
❖ Related Questions
➣ Following reactions take place during anareobic digestion ...
➣ In facultative stabilization pond, the sewage is ...
➣ The two main gases liberated from an ...
➣ From amongest the following sewage treatment options, ...
➣ The maximum efficiency of BOD removal is ...
➣ The gas from sludge digestion tank is ...
➣ Which one the following chemicals is employed ...
➣ BOD is preferred to COD as an ...
➣ Sewage sickness relates to : ...
➣ Sewage treatment units are designed for : ...
❖ Take a qick MCQ Test on
➤ Building Material
➤ Hydrology
➤ Strength of Material
➤ Fluid Mechanics and Hydraulics
➤ Concrete Structure
➤ Steel Structure
➤ Transportation Engineering
➤ Irrigation