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Environmental Engineering Practice Test: Particulates, Acid Rain & Aerosols
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Avg score: 0% • Most missed: “What is the statement of the Kelvin effect in fluid droplets?”

Particulates: Also known as aerosols, particulates are liquid or solid particles suspended in a gaseous or liquid medium. They can be found in the troposphere of the atmosphere. Examples of atmospheric aerosols include desert dust and soot from biomass fires.

Acid rain: A type of environmental pollution that occurs when acidic compounds are deposited from the atmosphere onto the Earth's surface. These compounds react with water vapor in the air to form sulfuric acid and nitric acid.

Topics include: Particulates, Acid Rain, & Aerosols.

Environmental Engineering Practice Test: Particulates, Acid Rain & Aerosols
Time left 00:00
25 Questions

1. What is the statement of the Kelvin effect in fluid droplets?
2. What does the aerodynamic diameter of an aerosol indicate?
3. Aerosols contribute to global warming.
4. What does the term “liming” mean?
5. Below which of the following pH is rain regarded as ‘acid rain’?
6. The movement of particles from region of lower vapour to high vapour molecule concentration is known as diffusiophoresis.
7. What is the reason behind the yellow colour of smog?
8. The size of aerosol particles formed mechanically is minimum 1 micron.
9. The acidic air pollutants reach the Earth’s surface because of wet deposition only.
10. Formation of aerosols by nucleation produces particles of size __________
11. Which place in India receives the highest annual rainfall?
12. What does CNC stand for in the context of aerosol particles?
13. What is the size range of respirable suspended particulate matter?
14. Which of the following gases is responsible for the yellowing of the Taj Mahal?
15. Which of the following constituent of photochemical smog causes the bronzing of plants?
16. What is/are the inertial method(s) used to measure size of aerosol particles?
17. When a given gas has a temperature gradient, the aerosol particles move from higher temperature regions to low temperature regions. This effect is known as __________
18. Which type of particulate is condensed form of vapours?
19. Particle movement due to photophoresis depends on _________
20. Who discovered the phenomenon of acid rain?
21. Glass containers are generally not preferred for sampling rain water. Why?
22. Which of the following aerosols have the best absorbing properties?
23. What is the size of the particles categorised as aerosols?
24. Which of the following gases are main contributors to acid rain?
25. What is the size range of atmospheric particulate matter?

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