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Which of the following is NOT an inertial collection device?

  • A.Venturi scrubber
  • B.Electrostatic precipitator
  • C.Cyclone
  • D.Gravity settling chamber

Answer: B

Correct answer: Electrostatic precipitator

The precipitator charges the particles and moves them to a plate by an electric field, which does not depend on particle inertia - and that is why it works on very fine material. The cyclone, the settling chamber and the venturi scrubber all rely on the particle’s failure to follow a change of direction in the gas, whether around a bend, downward under gravity, or past a droplet.

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