♡ 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 👍 :544
Share :
Copy ☍
✒ To discuss this topic
Comment
✕ Cancel
➤ Post Comment
❖ Related Questions
➣ Which of the following are claimed as ...
➣ When there is no recirculation of sewage, ...
➣ The maximum efficiency of BOD removal is ...
➣ The ratio of 5 days BOD to ...
➣ Which one the following units is employed ...
➣ Sewage sickness relates to : ...
➣ Sewage treatment units are designed for : ...
➣ In which type of lakes, does a ...
➣ The process in which chlorination is done ...
➣ The trickling filter is designed to remove: ...
❖ Take a qick MCQ Test on
➤ Fluid Mechanics and Hydraulics
➤ Concrete Technology
➤ Miscellaneous
➤ Water Supply
➤ Concrete Structure
➤ Pollution (Air and Noise)
➤ Surveying
➤ Strength of Material