Review Quiz: Air Quality And Environment! Hardest Trivia

76 Questions | By Asecrest | Last updated: Mar 22, 2022 | Total Attempts: 197

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This exam was offered as part of A&WMA's online course, "GENAQ-100E: Environmental Practices Review Specialty Course: Air Quality" in 2008.

Questions and Answers

1.

Air is a non-homogeneous mixture of gases, solid particles and liquids.
- A.
  
  True
- B.
  
  False
2.

Most household cleaning products and paints contain:
- A.
  
  Metals
- B.
  
  Volatile organic compounds
- C.
  
  Carbon dioxide
- D.
  
  Nitrogen oxides
3.

The portion of the atmosphere closest to the earth is called the:
- A.
  
  Stratosphere
- B.
  
  Ionosphere
- C.
  
  Mesosphere
- D.
  
  Troposphere
4.

By weight how much of the air is contained in the portion of the atmosphere closest to the earth:
- A.
  
  60%
- B.
  
  75%
- C.
  
  80%
- D.
  
  95%
5.

Which of the following is not a secondary pollutant:
- A.
  
  Nitrates
- B.
  
  Ozone
- C.
  
  SO2
- D.
  
  Sulfates
6.

Which of the following is not a criteria pollutant:
- A.
  
  Formaldehyde
- B.
  
  Carbon monoxide
- C.
  
  Lead
- D.
  
  Total suspended particulate
- E.
  
  PM-10
7.

Carbon monoxide has a 500 times greater affinity to hemoglobin in the blood than oxygen.
- A.
  
  True
- B.
  
  False
8.

Most carbon monoxide deaths are caused by faulty heating systems
- A.
  
  True
- B.
  
  False
9.

During high temperature combustion what is the predominant type of NOx that is formed:
- A.
  
  NO2
- B.
  
  N2O5
- C.
  
  NO
- D.
  
  None of the above
10.

Generally the higher the combustion temperature the greater amount of NOx is formed.
- A.
  
  True
- B.
  
  False
11.

High Ozone levels typically are experienced during periods of :
- A.
  
  Unstable Low Atmospheric Pressure and high temperatures
- B.
  
  Stable High Atmospheric Pressure and high temperatures
- C.
  
  Turbulent mixing in the atmosphere
- D.
  
  Inversions
12.

What two pollutants are responsible for ozone formation in the lower atmosphere?
- A.
  
  NOx
- B.
  
  SO2
- C.
  
  CO
- D.
  
  VOC
13.

Particulate matter is either a solid or a liquid during standard atmospheric conditions.
- A.
  
  True
- B.
  
  False
14.

PM-10 particles have a settling time of approximately:
- A.
  
  3.6 m/hr
- B.
  
  2.0 m/hr
- C.
  
  0.4 m/hr
- D.
  
  Negligible
15.

From lowest to highest list the following fuels in relationship to their sulfur content:a. Bituminous coalb. No. 2 fuel oilc. No. 6 fuel oild. Natural gase. Antracite coal
- A.
  
  B, c, d, e, a
- B.
  
  D, b, c, e, a
- C.
  
  B, c, d, a, e
- D.
  
  D, b, c, a, e
16.

What gas is most responsible for forming acidic precipitation?
- A.
  
  SO2
- B.
  
  NOx
- C.
  
  CO
- D.
  
  CO2
17.

What is the typical pH of natural rainfall?
- A.
  
  3.5
- B.
  
  5.5
- C.
  
  6.0
- D.
  
  7.5
18.

The smallest particle size collected at 100% efficiency in a cyclone is known as:
- A.
  
  Cut size
- B.
  
  Geometric size
- C.
  
  Aerodynamic mean size
- D.
  
  Critical size
19.

The average velocity through a 4ft. X 5ft. diameter rectangular stack is 30 feet / sec. What is the volume in acfm?
- A.
  
  600
- B.
  
  60
- C.
  
  3,600
- D.
  
  36,000
20.

The exhaust from a baghouse stack has a concentration of 0.2 gr./dscf. Given an exhaust of 10,000 scfm what is the emission rate in lbs./hr?
- A.
  
  1.0
- B.
  
  1.7
- C.
  
  3.4
- D.
  
  5.0
21.

How many cylindrical bags, 6 inches in diameter and 25 feet long, would be needed to filter a particulate laden stream? The total filtering surface area is 4045 square feet.
- A.
  
  15
- B.
  
  25
- C.
  
  103
- D.
  
  150
- E.
  
  300
22.

What are the two basic mechanisms for particulate collection in a fabric collector:
- A.
  
  Diffusion and precipitation
- B.
  
  Impaction and interception
- C.
  
  Agglomeration and diffusion
- D.
  
  Electrostatic attraction and agglomeration
23.

The type of flow in a stack is defined by:
- A.
  
  Avagadros Number
- B.
  
  Atomic number
- C.
  
  Reynolds Number
- D.
  
  Bernoulli's Equation
24.

A coal fired boiler is controlled by a spray dryer, a baghouse, and SCR. Match the pollutant with the control device used:SOxNOxParticulate
- A.
  
  Particulate - baghouse SOx - spraydryer NOx - SCR
- B.
  
  Particulate - spraydryer NOx - baghouse SOx - SCR
- C.
  
  NOx - SCR SOx - spraydryer Particulate - baghouse
25.

The above collectors are arranged in:
- A.
  
  Series
- B.
  
  Parallel