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)
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
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
We covered all the environmental engg mcq above in this post for free so that you can practice well for the exam.
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