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Chemical Engineering - Environmental Engineering

Exercise : Environmental Engineering - Section 2
46.
Presence of volatile compounds like gasoline, oil, alcohol, ether etc. in municipal sewers may cause
explosion
non biodegradable foam
undesirable plant growth
corrosion
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
Noise produced by cooling fans (employed in air cooled heat exchangers or cooling tower) is mainly caused due to the turbulence created by blade passage through air. It can be reduced by use of a slower fan
with greater number of blades.
of increased diameter.
both (a) & (b).
neither (a) nor (b).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
Presence of soluble organics in polluted water causes
undesirable plants growth.
depletion of oxygen.
fire hazards.
explosion hazards.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
Which of the following pollutants, if present in atmosphere is detectable by its odour ?
CO
SO2
NO2
CO2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
Exposure to chemicals having carcinogenic properties cause
dermatitis (skin disorder)
cancer
asphyxiation
asthma
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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