♡ 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 👍 :710
Share :
Copy ☍
✒ To discuss this topic
Comment
✕ Cancel
➤ Post Comment
❖ Related Questions
➣ What is the most common causes of ...
➣ Which of the following treatment processes are ...
➣ From amongest the following sewage treatment options, ...
➣ The unit in which both sedimentation and ...
➣ Which of the following statements explains the ...
➣ The specific gravity of sewage is : ...
➣ The correct relation between theoretical oxygen demand ...
➣ The biochemical treatment of sewage effluents is ...
➣ Composting and lagooning are the methods of ...
➣ The two main gases liberated from an ...
❖ Take a qick MCQ Test on
➤ Fluid Mechanics and Hydraulics
➤ Concrete Technology
➤ Concrete Structure
➤ Strength of Material
➤ Water Supply
➤ Solid Waste and Waste Water Treatment
➤ Building Material
➤ Miscellaneous