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Waste water Engineering Mock test – 3 || Civil Engineering Mock tests



Welcome to your Waste Water Engineering Mock test - 3
Take an exciting test in Waste water Engineering
You have only 20 mins to complete the test (25 Questions)
Wish you all the best!!!
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1.

Inter-distance between ventilation columns in a sewer line is kept

1 out of 26
2.

Ventilating shafts are provided to a sewer line at every

2 out of 26
3.

The spacing of bars of perforations of fine screens used for the treatment of sewage, is

3 out of 26
4.

Hydraulic mean radius is

4 out of 26
5.

If the peak discharge of a storm water drain (S.W. Drain) is e.xpected to exceed 150 cumecs, the free board to be provided, is

5 out of 26
6.

For trunk sewers more than 1.25 m in diameter, the ratio of the maximum daily sewage flow to the average daily sewage flow is assumed

6 out of 26
7.

The self-cleansing velocity of water flowing through pipe lines, is

7 out of 26
8.

The algae dies out in the zone of

8 out of 26
9.

PH value of sludge during alkaline regression stage, is

9 out of 26
10.

The recommended detention period for grit chambers is

10 out of 26
11.

PH value of sludge during alkaline regression stage, is

11 out of 26
12.

Which one of the following part of human body withstands minimum radiation

12 out of 26
13.

Sluge banks are formed if sewage is disposed of in

13 out of 26
14.

Depletion of ozone layer in the outer atmosphere may cause

14 out of 26
15.

The pH value of fresh sewage is usually

15 out of 26
16.

The maximum diameter of sewers adopted in the designs is

16 out of 26
17.

Lead caulked joints are used for laying

17 out of 26
18.

The sewer pipe which carries sewage from a building for immediate disposal is

18 out of 26
19.

The ratio of the diameter of a circular section and the side of a square section hydraulically equivalent, is

19 out of 26
20.

Pick up the correct statement from the following :

20 out of 26
21.

Pick up the correct statement from the following :

21 out of 26
22.

For trunk and out-fall, the type of sewers generally used, is

22 out of 26
23.

The pH value of sewage is determined with the help of

23 out of 26
24.

Primary treatment of sewage consists of removal of

24 out of 26
25.

The moisture content of a sludge is reduced from 90% to 80% in a sludge digestion tank. The percentage decrease in the volume of sludge, is

25 out of 26
26.

The sludge does not contain waste water from

26 out of 26






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