Water Quality and Health — MCQs

Which of the following agents causing acute infectious diarrhea can be paired with the pathogenic mechanism of destruction limited to the mature villus cells of small intestine?

In water testing from a well using Horrock's apparatus, blue color appears from the 4th cup onwards. What is the amount of bleaching powder required to disinfect 75000 litres of water?

Which of the following diseases is primarily water-related?

All of the following statements about purification of water are true except:

Which of the following diseases has the largest submerged portion in the iceberg model of disease?

Which method is used to test for chlorine content in drinking water?

An 18-year-old girl presents with watery diarrhea. Most likely causative agent -

Best emergency sanitary measure to control cholera is -

Swajaldhara programme is associated with:

Horrock's apparatus is used to measure?