ENVIRONMENTAL ENGINEERING IN CE QUIZ

The common pollutant generated in chlor-alkali industry and battery manufacture is

None of these

Phosphate

Mercury

Brine

TRUE ANSWER : ?
YOUR ANSWER : ?

Black smoke coming out of the chimney of a furnace is an indication of the use of __________ in the furnace.

Hydrocarbon fuel

Low amount of excess combustion air

Pulverised coal as fuel

Large quantity of excess combustion air

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following acts as a natural source of air pollution?

Deforestation

Forest fire

Volcanic eruption

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Insufficient washing of sand grains in a rapid sand filter causes

Air binding

Expansion of filtering media

Mud balls

Shrinkage of filtering media

TRUE ANSWER : ?
YOUR ANSWER : ?

Higher concentration of CO₂ in atmosphere

Reflects and absorbs the longer wavelength (infra-red) radiations

Prevents solar heat being radiated out completely, resulting in

Allows visible solar radiation (ultraviolet) of short wave-length to pass through

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Carcinogenic air pollutants cause

Asphyxiation (suffocation)

Bone decay

Anemia

Cancer

TRUE ANSWER : ?
YOUR ANSWER : ?

Replenishment of dissolved oxygen in water stream polluted with industrial waste occurs by

Neither A nor B

Photosynthetic action of algae

Natural aeration of water stream

Both A & B

TRUE ANSWER : ?
YOUR ANSWER : ?

Disinfection of water is done to destroy pathogenic bacteria and thus prevent water-borne diseases. Disinfection of water may be done by the use of

Chlorine or its compounds

All of these

Ozone and iodine

Ultraviolet light for irradiation of water

TRUE ANSWER : ?
YOUR ANSWER : ?

Main pollutants released from petroleum refineries is

CO₂, NO & SO₃

CO₂, H₂S & NO₂

SO₃, NO₂ & CO₂

CO, SO₂ & H₂S

TRUE ANSWER : ?
YOUR ANSWER : ?

The earth's atmosphere is an envelope of gases present upto a height of about __________ kms.

200

10

2000

1000

TRUE ANSWER : ?
YOUR ANSWER : ?