♡ 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 👍 :788
Share :
Copy ☍
✒ To discuss this topic
Comment
✕ Cancel
➤ Post Comment
❖ Related Questions
➣ The process in which chlorination is done ...
➣ The correct relation between theoretical oxygen demand ...
➣ The characteristics of fresh and septic sewage ...
➣ Which one the following types of settling ...
➣ The least expensive and most suitable excreta ...
➣ When there is no recirculation of sewage, ...
➣ In the design of grit chambers : ...
➣ Critical factors for the activated sludge treatment ...
➣ Sewage treatment units are designed for : ...
➣ The correct relation between theoretical oxygen demand ...
❖ Take a qick MCQ Test on
➤ Hydrology
➤ Water Supply
➤ Building Material
➤ Pollution (Air and Noise)
➤ Steel Structure
➤ Soil Mechanics and Foundation
➤ Fluid Mechanics and Hydraulics
➤ Strength of Material