Environmental Engineering in CE MCQs

Question 1

Higher concentration of CO2 in atmosphere

Accepted Answer

All of the above

Answer

Allows visible solar radiation (ultraviolet) of short wavelength to pass through

Answer

Reflects and absorbs the longer wavelength (infrared) radiations

Answer

Prevents solar heat being radiated out completely, resulting in

Question 2

Foul odour and bad taste of water is removed by treating with

Accepted Answer

Activated carbon

Answer

Alum

Answer

Bleaching powder

Answer

Copper sulphate

Question 3

The upper layer of atmosphere is called the

Accepted Answer

Stratosphere

Answer

Troposphere

Answer

Ionosphere

Answer

None of these

Question 4

Hazardous/polluting chemical industries should have an 'exclusion zone' with a green belt and general public access prohibited around it, covering a radius of ____ metres.

Accepted Answer

1000

Answer

100

Answer

400

Answer

4000

Question 5

World environment day is observed every year on the 5th of

Accepted Answer

June

Answer

December

Answer

July

Answer

September

Question 6

Pollution by particulate matter emission in the atmosphere does not take place during metal

Accepted Answer

Polishing

Answer

Grinding

Answer

Machining

Answer

Cutting

Question 7

Pick out the correct statement.

Accepted Answer

Global warming is detrimental for increase in food productivity and may cause flood and cyclone

Answer

Deforestation helps in controlling the green house effect

Answer

Lightening discharges are natural source of production of SO2 & H2S pollutant

Answer

Sulphur dioxide causes death by asphyxiation

Question 8

Main pollutant present in automobile exhaust is

Accepted Answer

CO

Answer

CO2

Answer

NO

Answer

Hydrocarbons

Question 9

Biological oxidation ponds remove organic matters present in the polluted water by

Accepted Answer

Both A & B

Answer

Using the activities of bacteria and other micro organisms

Answer

Aerobic oxidation

Answer

Neither A nor B