♡ 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 👍 :748
Share :
Copy ☍
✒ To discuss this topic
Comment
✕ Cancel
➤ Post Comment
❖ Related Questions
➣ Which one the following types of settling ...
➣ The two main gases liberated from an ...
➣ The correct relation between theoretical oxygen demand ...
➣ After which of the following water treatment ...
➣ The biochemical treatment of sewage effluents is ...
➣ Total volatile suspended solids to be anaerobically ...
➣ The effect of increasing diameters of sewer ...
➣ Which of the following terms, correctly describes ...
➣ The maximum efficiency of BOD removal is ...
➣ The maximum efficiency of BOD removal is ...
❖ Take a qick MCQ Test on
➤ Irrigation
➤ Surveying
➤ Hydrology
➤ Pollution (Air and Noise)
➤ Soil Mechanics and Foundation
➤ Strength of Material
➤ Concrete Technology
➤ Steel Structure