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Statement I: Very low dust resistivity is as troublesome as very high resistivity.

Statement II: Dust that loses its charge immediately is re-entrained into the gas stream.

In the light of the above statements, choose the correct answer.

  • A.Statement I is incorrect but Statement II is correct
  • B.Both Statement I and Statement II are correct
  • C.Both Statement I and Statement II are incorrect
  • D.Statement I is correct but Statement II is incorrect

Answer: B

Both are true and the second describes the low resistivity failure. There is a workable window of roughly ten to the seventh to ten to the tenth ohm centimetres, and dust outside it in either direction collects poorly.

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