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Environmental Engg MCQ

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Environmental Engg MCQ. We covered all the Environmental Engg MCQ in this post for free so that you can practice well for the exam.

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MCQ on Environmental Engg for Students

Ozone is an important constituent of the stratosphere because it

(a) Destroys bacteria which are harmful to human life

(b) Prevents the formation of smog over large cities

(c) Removes poisonous gases of the atmosphere by reacting with them

(d) Absorbs ultraviolet radiation which is harmful to human life

Option d – Absorbs ultraviolet radiation which is harmful to human life

SO2 is one of the air pollutants. SO2

(a) is a lung irritant

(b) dissolves in water to form acid rain

(c) both (a) and (b)

(d) none of the above

Option c – both (a) and (b)

Which State of India experiences the maximum annual variation of rainfall?

(A) Meghalaya

(B) Kerala

(C) Rajasthan

(D) West Bengal

Show Answer

The formation of London smog takes place in

(a) winter during day time

(b) summer during day time

(c) summer during morning time

(d) winter during morning time

Option d – winter during morning time

The secondary precursors of photochemical smog are

(a) SO₂ and NO₂

(b) SO2 and hydrocarbons

(c) NO2 and hydrocarbons

(d) O3 and PAN

Option d – O3 and PAN

Pakyong Airport is located in?

(A) Sikkim

(B) Jammu and Kashmir

(C) Arunachal Pradesh

(D) Mizoram

Show Answer

The gas emitted by supersonic jet planes that slowly depletes the concentration of the ozone layer is

(a) CO

(b) NO

(c) SO₂

(d) 0₂

Option b – NO

Carbon monoxide (CO) is harmful to man because

(a) it forms carbolic acid

(b) it generates excess CO₂

(c) it is carcinogenic

(d) it competes with O₂ for haemoglobin

Option d – it competes with O₂ for haemoglobin

The greenhouse effect is because of the

(a) presence of gases, which in general are strong infrared absorbers, in the atmosphere

(b) the presence of CO₂ only in the atmosphere

(c) pressure of O3 and CH4 in the atmosphere

(d) N₂O and chlorofluorohydrocarbons in the atmosphere

Option a – presence of gases, which in general are strong infrared absorbers, in the atmosphere

The irritant red haze in the traffic and congested places is due to the presence of which of the following? (i) Oxides of sulphur (ii) Oxides of nitrogen (iii) Carbon dioxide (iv) Mists, smoke and dust (v) Smog

(a) (i), (iv) and (v)

(b) (iii) only

(c) (ii) only

(d) (ii) and (v)

Option c – (ii) only

Classical smog occurs in places of

(a) excess SO₂

(b) low temperature

(c) high temperature

(d) excess NH3

Option b – low temperature

The smog is essentially caused by the presence of

(a) oxides of sulphur and nitrogen

(b) O₂ and N₂

(c) O₂ and 03

(d) 03 and N₂

Option a – oxides of sulphur and nitrogen

In almost all Indian metropolitan cities like Delhi, the major atmospheric pollutant(s) is/are

(a) suspended particulate matter (SPM)

(b) oxides of sulphur

(c) carbon dioxide and carbon monoxide

(d) oxides of nitrogen

Option a – suspended particulate matter (SPM)

Which of the following chemical, harmful to ozone, is released by chlorofluorocarbon?

(a) Sulphur dioxide

(b) Fluorine

(c) Chlorine

(d) Nitrogen dioxide

Option c – Chlorine

In Antarctica, ozone depletion is due to the formation of the following compound

(a) acrolein

(b) peroxyacetyl nitrate

(c) SO₂ and SO3

(d) chlorine nitrate

Option d – chlorine nitrate

The substance which is not regarded as a pollutant?

(a) NO₂

(b) CO₂

(c) 03

(d) Hydrocarbons

Option b – CO₂

The substance having the largest concentration in acid rain is

(a) H₂CO3

(b) HNO3

(c) HCI

(d) H₂SO4

Option d – H₂SO4

The main element of smog is

(a) O3 and PAN

(b) 0₂

(c) PAN

(d) PPN and PBN

Option a – O3 and PAN

Greater use of disposable packaging materials is affecting the environment because

(a) they are more convenient to use.

(b) they are increasing non-biodegradable waste

(c) they are hygienic and non-toxic for humans

(d) All of these

Option b – they are increasing non-biodegradable waste

What is DDT among the following?

(a) Greenhouse gas

(b) A fertilizer

(c) Biodegradable pollutant

(d) Non-biodegradable pollutant

Option d – Non-biodegradable pollutant

Which of the following steps is not relevant to the formation of ozone?

(a) Ozone is a poisonous gas.

(b) UV radiations from sunlight split an oxygen molecule into atomic oxygen.

(c) Oxygen molecules combine with atomic oxygen to form ozone.

(d) Ozone is formed at the higher levels of the atmosphere.

Option a – Ozone is a poisonous gas

Preservation of the Ozone layer

(a) is important because it helps in stopping harmful UV radiation

(b) is endangered by CFCs

(c) Both (a) and (b)

(d) is not necessary as they will give us more oxygen

Option c – Both (a) and (b)

Disposal of garbage can be made eco-friendly by

(a) segregating it into biodegradable and non-biodegradable bins.

(b) treating the biodegradable waste separately into some useful forms.

(c) treating industrial waste and sewage before disposing of them in water bodies.

(d) All of these.

Option d – All of these

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