A. light in weight and easy to transport
B. highly resistant to corrosion
C. high flexible to accommodate deflection upto 12°
D. very much smooth and hydraulically efficient
E. all the above
Related Mcqs:
- Corrosion of well pipes may not be reduced by_________________?
A. reducing the draw down and the pumping rate
B. reducing the flow velocity
C. using thicker pipes
D. using screens having larger area of openings
E. none of these - In distribution pipes, drain valves are provided at_______________?
A. lower point
B. higher point
C. junction points
D. any where - The fire demand of a city may be worked out by _________________?
A. Kuichling’s formula
B. Freeman formula
C. Under Writers formula
D. Bustan’s formula
E. All the above. - 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 - 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 these - 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 above - Acidity in water is caused due to_______________?
A. Mineral acids
B. Free CO2
C. Iron sulphate
D. Aluminium sulphate
E. All the above - Biochemical Oxygen Demand (B.O.D.) of safe drinking water must be________________?
A. nil
B. 5
C. 10
D. 15
E. 20 - 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 litres - As per IS : 1172-1963, water required per head per day for average domestic purposes, is_______________?
A. 50 litres
B. 65 litres
C. 85 litres
D. 105 litres
E. 135 litres
