Disinfection of drinking water, is done to remove_________________?
Disinfection of drinking water, is done to remove_________________?
A. odour
B. bacterias
C. turbidity
D. colour
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If four fires break out in a city of population 40 lakhs and if each hydrant has three streams and duration of each fire is four hours, the total quantity of water required, is______________________?
If four fires break out in a city of population 40 lakhs and if each hydrant has three streams and duration of each fire is four hours, the total quantity of water required, is______________________?A. 1880 kilo litres
B. 2880 kilo litres
C. 3880 kilo litres
D. 4880 kilo litresAeration of water is done to remove______________?
Aeration of water is done to remove______________?A. odour
B. colour
C. bacterias
D. hardness
E. turbidityThe expected discharge to be obtained from an open well sunk in coarse sand is 0.0059 cumec. If the working depression head of the well is 3 m, the minimum diameter of the well, is________________?
The expected discharge to be obtained from an open well sunk in coarse sand is 0.0059 cumec. If the working depression head of the well is 3 m, the minimum diameter of the well, is________________?A. 2 m
B. 2.25 m
C. 2.50 m
D. 2.75 m
E. 3.00 mThe underground sources of water, is from______________?
The underground sources of water, is from______________?Pick up the incorrect statement from the following?
A. wells
B. springs
C. infiltration wells
D. storage reservoirs
E. none of theseAccording to IS : 1172-1963, a minimum of 135 litres of water capita per day, is required for________________?
According to IS : 1172-1963, a minimum of 135 litres of water capita per day, is required for________________?A. Boarding schools
B. Nurses home and medical quarters
C. hostels
D. all the aboveThe yield of a rapid gravity filter as compared to that of slow sand filter, is__________________?
The yield of a rapid gravity filter as compared to that of slow sand filter, is__________________?A. 10 times
B. 15 times
C. 20 times
D. 30 times
E. 35 times