Curioustab

Home » Chemical Engineering » Environmental Engineering

Presence of iron and manganese in water causes

reduction in its dissolved oxygen content.
discoloration of bathroom fixtures.
temporary hardness.
none of these.

Correct Answer: discoloration of bathroom fixtures.

← Previous Question Next Question→

More Questions from Environmental Engineering

Most of the bacteria in sewage are
Solid content in most of the domestic sewage is about __________ percent.
Limestone powder is injected during pulverised coal burning in boilers to __________ the flue gases.
Which of the following industries discharge mercury as a pollutant?
Oilish impurities present the effluent discharged from the electroplating industry is normally not removed by
From pollution control point of view, the maximum permissible concentration of sulphur dioxide in atmospheric air is about __________ ppm.
The function of skimming tank in sewage treatment is to remove __________ substances.
Lead exhausted in the atmosphere by automobiles using leaded petrol (i.e. tetraethyl lead for improving octane number) is a lethal air pollutant which causes
The destruction of water-borne pathogens is termed as disinfection of water. Which of the following is a water disinfectant?
The principal gas evolved from sludge digestion tank is

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion