UPPSC AE (CE) Quiz 6

What is the maximum permissible limit of fluoride in drinking water?

The most common cause of acidity in water is :

In a water sample,. What is alkalinity of water sample in mg/l as ?

By boiling water, hardness can be removed if it is due to:

A compound that imparts temporary hardness to water:

Presence of which one of the following in water in the major cause of depression, paralysis, blindness and birth defects?

Biochemical oxygen demand is quoted at what temperature?

Consider the statement

(i) Iron Bacteria causes tuberculation in pipes and renders water unsuitable for industrial purposes.

(ii) Sulphur Bacteria produces acid during metabolism, which is destructive to concrete and other structure.

(iii) Cholera and Jaundice are diseases caused due to protozoa.

Select correct code:-

List I. - List II

a. Coccus - 1) Spiral

b. Bacillus - 2) Rod shaped

c. Vibrium - 3) Spherical

d. Spirillum - 4) Comma shaped