A) Cyclone collector removes fine particles in the diameter range 5-20 microns.
B) Wet scrubbers are used to wash away all types of particulates
C) In electrostatic precipitator, the particulates are made to acquire positive charge which are then attracted by the negative electrode and removed.
D) Gravity settling chamber removes larger particles from the air.
Correct Answer: C
Solution :
In electrostatic precipitator, the electrode plate is positively charged. Thus, the particulates acquire negative charge and are attracted by the negative electrode plate.
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