Chemical Engineering - Environmental Engineering
Exercise :: Environmental Engineering - Section 6
| 1. |
Smog is |
| A. |
nothing but black smoke. | | B. |
a combination of smoke and fog. | | C. |
a liquid particle resulting from vapor condensation. | | D. |
a solid particle e.g. flyash. |
Answer: Option B
Explanation:
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| 2. |
__________ is the process of killing organism in water. |
| A. |
Coagulation | | B. |
Sterilisation | | C. |
Disinfection | | D. |
Sedimentation |
Answer: Option C
Explanation:
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| 3. |
Reingleman chart No. 2 corresponds to __________ percent black smoke. |
Answer: Option C
Explanation:
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| 4. |
Which of the following is a manmade source of air pollution ? |
| A. |
Automobile exhaust. | | B. |
Forest fire. | | C. |
Bacterial action in soil and swamp areas | | D. |
All (a), (b) and (c). |
Answer: Option A
Explanation:
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| 5. |
Which is the most efficient dust removal equipment for removal of sub-micronic dust particles from blast furnace gas ? |
| A. |
Packed scrubber | | B. |
Gravity settling chamber | | C. |
Electrostatic precipitator | | D. |
Hydrocyclone |
Answer: Option C
Explanation:
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