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Environmental Engineering Practice Test: Air Pollution
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Air pollution engineering is a branch of environmental engineering that focuses on air pollution control and air quality engineering.  Air pollution control engineers, also known as air quality engineers, develop techniques to analyze and control air pollution. They use chemical analysis, computer modeling, statistical analysis, and sophisticated monitoring. Some air quality engineers design or modify pollution-control equipment.  Environmental engineers study air, soil, and water pollution problems. They develop technical solutions to solve, control, or attenuate these problems. These... Show more
Environmental Engineering Practice Test: Air Pollution
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25 Questions

1. The detention period of the sedimentation chamber of an Imhoff tank is?
Figure: Imhoff tank
2. In-situ in-stack analysers are used for measuring concentrations of which of the following gases?
3. The maximum size of fly ash is ___________
4. Which of the following removes both gaseous and particulate contaminants?
5. Wet scrubbers are classified into ____ types.
6. The wet adiabatic rate is greater than the dry adiabatic rate.
7. When Environmental Lapse Rate (ELR) is greater than Adiabatic Lapse Rate (ALR), then which of the following occurs?
8. Which of the following are sources to fluorine air pollution?
9. How does atmospheric pressure vary with increase in altitude?
10. Identify the correct statement regarding the Electrostatic precipitator.
11. When Richardson number is equal to zero, what is the wind turbulence characteristic?
12. How does increase in temperature affect air pollution?
13. The effective height of stack is given by ___________
14. Below what Richardson number does convective mixing start dominating mechanical turbulence?
15. What does the term obliquity indicate?
16. The sewage comes in the Imhoff tank through which of the following?
Figure: Imhoff tank
17. Which of the following is the current major contributor to lead air pollution?
18. Fluorescence analysers are used to analyse which of the following gases?
19. Which of the following analyser is used for oxygen analysis?
20. Which of the following pollutants is the major contributor to photochemical smog?
21. Which of the following plants is extremely sensitive towards sulphur dioxide?
22. The velocity of air reduces to zero by the time it reaches the bronchi.
23. Which of the following plume is worst for the dispersion of pollutants?
24. Which is the most abundant hydrocarbon in the atmosphere?
25. Which of the following fluid is used in web scrubbers?