A. NOx
B. SOx
C. CO
D. suspended particulate matter
✅ The correct answer is option D.
Gravity setting chambers are used in industries to remove suspended particulate matter. A Gravitational Settling Chamber is a rectangular chamber in which several horizontal trays are fixed. When the polluted gas enters the chamber, its velocity is kept low so that the particulates get sufficient time to settle down due to gravity.
Gravity setting chambers are used in industries to remove suspended particulate matter. A Gravitational Settling Chamber is a rectangular chamber in which several horizontal trays are fixed. When the polluted gas enters the chamber, its velocity is kept low so that the particulates get sufficient time to settle down due to gravity.