A. Ozone
B. Photochemical smog
C. Sulphur dioxide
D. All A., B. & C.
Chemical Environmental Engineering
Chemical Environmental Engineering
A. Dust catcher (gravity type)
B. Cyclone separator
C. Bag filter
D. Hollow wet scrubber
A. 25
B. 50
C. 80
D. 120
A. 1
B. 3
C. 7
D. 20
A. Reynold stresses
B. Shear forces
C. Both A. & B.
D. Neither A. nor B.
A. Methane
B. Nitrous oxide
C. Chlorofluoro carbons (CFC)
D. All A., B. and C.
A. Turbidity
B. Color (Hazen)
C. Total solids
D. All A., B. & C.
A. Decreases
B. Increases
C. Remain constant
D. May increase or decrease; depends on the chemical characteristics of polluted water
A. Global warming
B. Green house
C. Atmospheric effect
D. Ionosphere
A. Cancer
B. Silicosis
C. Respiratory disease (e.g., asthma)
D. Reduced crop yield
