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Chemical Engineering - Environmental Engineering

Exercise : Environmental Engineering - Section 6
41.
Out of the following, TLV of __________ is maximum (about 500 ppm).
carbon dioxide
toluene
carbon disulphide
acetaldehyde
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
Which of the following plants does not emit appreciable amount of SO2 in atmosphere ?
Thermal power plant
Petroleum refinery
Nitric acid plant
Sulphuric acid plant
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
The maximum CO2 is emitted into the atmosphere by
combustion
urea
biomass burning
trees
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
Which of the following is not a practical method of low level radioactive waste disposal ?
Dilution with inert material.
Discharging to atmosphere through tall stacks after dilution.
Disposing off in rivers & oceans.
Filling in steel crates and shooting it off out of earth's gravity.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
Major sources of noise in furnace operation arises from air inspirators, combustion, side wall vibrations and fluctuation in the process heat load. A 50% increase in fuel firing rate may increase the furnace noise level by about __________ decibels.
3
30
70
100
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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