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SSC JE Civil Engineering Preliminary Exam in January 2018 | Practice test Day – 49



Welcome to your SSC JE Civil Engineering 2018 Objective Exam Practice test Day - 49
Take an exciting test in SSC JE Civil Preliminary Exam in January 2018. 
You have only 20 mins to complete the test (25 Questions)
Wish you all the best!!!
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1.

Sluge banks are formed if sewage is disposed of in

1 out of 26
2.

The recommended detention period for grit chambers is

2 out of 26
3.

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

3 out of 26
4.

Hydraulic mean radius is

4 out of 26
5.

The pH value of sewage is determined with the help of

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.

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

7 out of 26
8.

PH value of sludge during alkaline regression stage, is

8 out of 26
9.

The maximum diameter of sewers adopted in the designs is

9 out of 26
10.

PH value of sludge during alkaline regression stage, is

10 out of 26
11.

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

11 out of 26
12.

Primary treatment of sewage consists of removal of

12 out of 26
13.

The pH value of fresh sewage is usually

13 out of 26
14.

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

14 out of 26
15.

The sludge does not contain waste water from

15 out of 26
16.

Pick up the correct statement from the following :

16 out of 26
17.

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

17 out of 26
18.

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

18 out of 26
19.

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

19 out of 26
20.

Depletion of ozone layer in the outer atmosphere may cause

20 out of 26
21.

Ventilating shafts are provided to a sewer line at every

21 out of 26
22.

Pick up the correct statement from the following :

22 out of 26
23.

Lead caulked joints are used for laying

23 out of 26
24.

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

24 out of 26
25.

The algae dies out in the zone of

25 out of 26
26.

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

26 out of 26






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