NEHA Module 12 - Air Quality and Noise Exam Questions & Answers (Grade A+).docx

NEHA Module 12 - Air Quality and Noise
Exam Questions & Answers (Grade A+)
Early exposure to heavy air pollution is believed to be a contributing
factor to all of the following lung conditions in adults except:


A. asthma
B. lowered pulmonary reserve capacity
C. pneumoconiosis
D. chronic lung disease -
correct answer ✅C. pneumoconiosis (black lung disease)


The approximate concentration of oxygen in ambient air is:


A. 78%
B. 21%
C. 15%
D. 25% -
correct answer ✅B. 21%


The transfer of heat by movement of air masses is referred to as:


A. radiation

, NEHA Module 12 - Air Quality and Noise
Exam Questions & Answers (Grade A+)
B. conduction
C. thermal inversion
D. convection -
correct answer ✅D. convection


The adiabatic lapse rate describes a temperature decrease of this
amount with increasing altitude:


A. 4.5*F/km
B. 4.9*F/km
C. 5.1*F/km
D. 5.4*F/km -
correct answer ✅D. 5.4*F/km


Organic gases and vapors react with other atmospheric chemicals
to produce the effects associated with:


A. photochemical smog
B. thermal inversions
C. convection currents