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Chemical Engineering - Environmental Engineering

Exercise : Environmental Engineering - Section 2
6.
Sound produced by an automobile horn heard at a distance of 1.5 metres corresponds to about __________ decibels.
90
120
150
180
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
Moist atmospheric air at high temperature (e.g., in summer) having high concentration of sulphur dioxide causes
fading of dyes on textiles.
corrosion, tarnishing & soiling of metals.
reduced strength of textiles.
all (a), (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
Nitrogen oxides (NOx) is not produced in the __________ industry.
nitric acid making
nitrogenous fertiliser
detergent
any of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
World's worst radioactive pollution was caused by nuclear reactor disaster which occured in
Arizona (U.S.A.)
Chernobyl (undivided U.S.S.R.)
Pensylvania (U.S.A.)
Moscow (U.S.S.R.)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
Dissolved oxygen content in river water is around __________ ppm.
5
100
250
500
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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