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Match each device in List I with its characteristic parameter in List II.

List I

A. Cyclone

B. Fabric filter

C. Electrostatic precipitator

D. Venturi scrubber

List II

1. Air to cloth ratio

2. Cut diameter

3. Throat velocity and liquid to gas ratio

4. Migration velocity

Select the correct match.

  • A.A-3, B-1, C-4, D-2
  • B.A-2, B-1, C-4, D-3
  • C.A-1, B-2, C-4, D-3
  • D.A-2, B-4, C-1, D-3

Answer: B

Each device is sized and compared on its own parameter, and none of the four transfers to another device. Knowing which parameter belongs where is the quickest way to recognise a question that has muddled two devices together.

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