♡ 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 👍 :497
Share :
Copy ☍
✒ To discuss this topic
Comment
✕ Cancel
➤ Post Comment
❖ Related Questions
➣ The time of concentration is defined as ...
➣ The specific gravity of sewage is : ...
➣ The working conditions in imhoff tanks off ...
➣ Ventilation of sewer lines is necessary to ...
➣ The process in which chlorination is done ...
➣ Sewage treatment units are designed for : ...
➣ The maximum efficiency of BOD removal is ...
➣ Are requirements (ha) for disposal of the ...
➣ In facultative stabilization pond, the sewage is ...
➣ Which one the following types of settling ...
❖ Take a qick MCQ Test on
➤ Water Supply
➤ Pollution (Air and Noise)
➤ Concrete Structure
➤ Hydrology
➤ Concrete Technology
➤ Strength of Material
➤ Steel Structure
➤ Building Material