20 Questions
Which gases are identified as ozone depleting substances (ODS)?
Fluorinated gases
What happens when chlorine reacts with ozone?
It breaks down the ozone into O2
What is the main purpose of fluorinated gases?
To replace chlorofluorocarbon (CFC) refrigerants
Which gases are considered the longest lasting and most powerful greenhouse gases released by human activity?
Fluorinated gases
Besides CFCs, HCFCs, and fluorinated gases, which other gaseous pollutants are commonly monitored?
Arsenic, chlorine, and mercury
Which of the following is NOT a negative effect of acid rain on plant life?
Direct injury to humans upon contact
What is the main reason why forests are being killed by acid rain?
Toxic quantities of materials taken into solution by groundwater
Which structures are particularly susceptible to the corrosive action of acid rain?
Both buildings made of limestone or marble and structures with exposed metals
What health problems can be caused by inhaling the particulates that cause acid rain?
Emphysema and bronchitis
How does acid rain affect buildings and other structures?
It increases maintenance costs
Which of the following is a disadvantage of wind power?
It relies on energy storage systems
What is the direct conversion of solar energy into electricity called?
Solar Photovoltaic (PV)
What is the main advantage of using hydrogen as a fuel?
It is a nonpolluting source of energy
What is the main purpose of fuel cells?
To produce electricity to drive portable power systems
What type of solar technology involves mirrors that focus and concentrate solar energy on a target point?
Solar Thermal
Which of the following is a form of sound path modification?
Creating a buffer zone around the source
What is the minimum size of a hole in an enclosure that would make it non-effective in blocking sound?
1/1000 of the total wall area
Which type of noise enclosure is commonly used on forced draft fans?
Inlet silencers
What are the two types of noise enclosures shown in Figure 9?
Mufflers and lined ducts
What is the main reason why facilities that burn coal are being pressured to shut down or convert to natural gas?
To reduce the generation of SOX and NOX
Test your knowledge about carbon monoxide production and sources with this quiz! Learn about the various factors that contribute to CO formation, including insufficient air, fuel-air mixing, and combustion time. Discover how internal combustion engines, forest fires, burning refuse, and poorly tuned boilers can be significant producers of carbon monoxide.
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