The electrostatic precipitators have an efficiency characteristic which is related primarily to exposure time i.e. the period during which a dust particle is exposed to the electrostatic field. Exposure time can be increased by

Chemical Environmental Engineering Mcqs
BILAL KHATTAK0

A.increasing the cross-sectional area of the precipitator
B.increasing its length in the direction of gas flow
C.both a and b
D.neither a nor b

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