- (A) Laminar flow
- (B) Complete back mixing
- (C) Plug flow
- (D) Eddy diffusivity = 0
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- (A) Increases capacity
- (B) Increases economy
- (C) Does not affect the capacity
- (D) Both
- (A) Laminar flow
- (B) Complete back mixing
- (C) Plug flow
- (D) Eddy diffusivity = 0
- (A) Segmental baffle
- (B) Flat plate extending across the wall
- (C) Disk type baffle
- (D) Helical type baffle
- (A) Working
- (B) Damaging
- (C) Allowable
- (D) None of these
- (A) Higher
- (B) Lower
- (C) Same
- (D) Unpredictable
- (A) 5
- (B) 60
- (C) 160
- (D) 200
- (A) Of its flexibility and nearly constant efficiency under varying conditions of operation
- (B) It incurs less pressure drop as compared to any other try designed for the same duty
- (C) It eliminates the foaming and entrainment tendency during operation
- (D) None of these
- (A) Less than arithmetic mean value
- (B) More than arithmetic mean value
- (C) More than geometric mean value
- (D) Both
- (A) Decreases with increase in gas flow rate
- (B) Is inversely proportional to the mass of the dust particle
- (C) Is directly proportional to the radius of the dust particle path
- (D) None of these

