By boiling water, hardness can be removed if it is due to_________________?

Related Mcqs:

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...

The factor affecting per capita demand, is___________________?

A. size of the city B. climatic conditions C. pressure in water mains D. cost of water E. all the above...

The specific retention is least in case of_______________?

A. Clay B. Sand C. Silt D. Coarse gravel...

Biochemical Oxygen Demand (B.O.D.) of safe drinking water must be________________?

A. nil B. 5 C. 10 D. 15 E. 20...

In distribution pipes, drain valves are provided at_______________?

A. lower point B. higher point C. junction points D. any where...