The least thickness of class B cast iron (spun) pipe, is_________________?
The least thickness of class B cast iron (spun) pipe, is_________________?
A. 7.2 mm
B. 7.9 mm
C. 8.6 mm
D. 10 mm
Similar Posts
Acidity in water is caused due to_______________?
Acidity in water is caused due to_______________?A. Mineral acids
B. Free CO2
C. Iron sulphate
D. Aluminium sulphate
E. All the aboveAccording 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 aboveIn distribution pipes, drain valves are provided at_______________?
In distribution pipes, drain valves are provided at_______________?A. lower point
B. higher point
C. junction points
D. any whereIn slow sland filters, the turbidity of raw water can be removed only up to_________________?
In slow sland filters, the turbidity of raw water can be removed only up to_________________?A. 60 mg/litre
B. 75 mg/litre
C. 100 gm/litre
D. 150 mg/litreThe 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 theseBy boiling water, hardness can be removed if it is due to_________________?
By boiling water, hardness can be removed if it is due to_________________?A. calcium sulphate
B. magnesium sulphate
C. calcium nitrate
D. calcium bicarbonate
E. none of these