♡ 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 👍 :525
Share :
Copy ☍
✒ To discuss this topic
Comment
✕ Cancel
➤ Post Comment
❖ Related Questions
➣ The gas from sludge digestion tank is ...
➣ Composting and lagooning are the methods of ...
➣ Total volatile suspended solids to be anaerobically ...
➣ The ratio of 5 days BOD to ...
➣ The correct relation between theoretical oxygen demand ...
➣ The time of concentration is defined as ...
➣ The correct relation between theoretical oxygen demand ...
➣ Which one the following chemicals is employed ...
➣ Sludge volume index is defined as the ...
➣ What is the most common causes of ...
❖ Take a qick MCQ Test on
➤ Strength of Material
➤ Concrete Technology
➤ Surveying
➤ Soil Mechanics and Foundation
➤ Miscellaneous
➤ Hydrology
➤ Transportation Engineering
➤ Concrete Structure