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Chemical Engineering - Environmental Engineering

Exercise : Environmental Engineering - Section 1
16.
Smoke is produced due to
insufficient supply of combustion air and insufficient time for combustion.
poor quality of fuel and improper mixing of fuel & combustion air.
poor design & overloading of furnace.
all (a), (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
Fluorosis (a bone disease) is caused by the presence of high concentration of __________ in atmospheric air.
hydrocarbons
hydrogen flouride
hydrogen sulphides
nitrogen dioxide
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
Threshold Limit Value (TLV) is the maximum allowable concentration (i.e. safe limit) of pollutants in air. Safe limit for SO2 in air is __________ ppm.
5
500
1000
2000
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
Main pollutants released from iron & steel industry is
CO, CO2 & SO2.
H2S, NO & SO3.
CO2, H2S & NO2.
SO3, NO2 & CO2.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
Exposure to chemicals having carcinogenic properties cause
dermatitis (skin disorder)
cancer
asphyxiation (suffocation)
asthma
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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