1.
As per IS : 1172-1963, water required per head per day for average domestic purposes, is
2.
Acidity in water is caused due to
3.
If pH value of water is
4.
Pick up the correct statement from the following :
5.
Corrosion of well pipes may not be reduced by
6.
The population growth curve is
7.
The maximum depth of sedimentation tanks is limited to
8.
According to IS : 1172-1963, a minimum of 135 litres of water capita per day, is required for
10.
While determining the yield of open wells by the pumping tes
11.
Percussion drilling is unsuitable in
12.
Mathamoglobinemia, or blue baby disease is caused due to
13.
Flow through period, in sedimentation tanks, is
14.
A pressure conduit laid under ground, may not be subjected to
15.
Gravity conduits for carrying water from the source are
16.
Check valves are installed
17.
Pick up the incorrect statement from the following:
18.
Mostly used coagulant, is
19.
The efficiency of sedimentation tank does not depend upon
20.
In pumping stations, the type of joint generally used, is
21.
The strainer type tube well, is unsuitable for
22.
Standard process of chlorination of water, is done by
23.
Distribution of wash water is provided in
24.
Turbidity of water may be caused due to
25.
The process of passing water through beds of granular materials, is called
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