Civil Engineering - Waste Water Engineering

6.
The minimum diameter of a sewer is kept
10 cm
15 cm
20 cm
25 cm
30 cm.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

7.
The minimum diameter of sewer to be adopted is
10 cm
12.5 cm
15 cm
25 cm.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

8.
To test chemical oxygen demand (C.O.D.) of sewage, organic matter is oxidised by pottassium dichromate in the presence of
Hydrochloric acid
Sulphuric acid
Nitric acid
Citric acid.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

9.
The discharge per unit plan area of a sedimentation tank, is generally called
over flow rate
surface loading
over flow velocity
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

10.
In a sedimentation tank (length L, width B, depth D) the settling velocity of a particle for a discharge Q, is
Answer: Option
Explanation:
No answer description is available. Let's discuss.