- (A) f = 16/NRe
- (B) f = 0.04/(NRe)0.16
- (C) f = 0.22 NRe 0.5
- (D) f = 25/NRe
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- (A) d
- (B) √d
- (C) √(2πd)
- (D) √(2d)
- (A) Disk and ring
- (B) Segmental
- (C) Orifice
- (D) Independent of the type of
- (A) 1/8 and 1/64
- (B) 1/64 and 1/8
- (C) 1/2 and 8
- (D) 1/2 and 5
- (A) 1/10th
- (B) 1/20th
- (C) 1/30th
- (D) 1/50th
- (A) Is always less than arithmetic average value
- (B) Is always more than arithmetic mean value and the geometric mean value
- (C) Is always less than arithmetic mean value, but more than geometric mean value
- (D) May be either more or less than geometric mean and arithmetic mean value depending upon whether the flow of stream is co-current or counter-current
- (A) Allowable gas velocity through the slots
- (B) Plate spacing
- (C) Diameter of the column
- (D) All
- (A) 0.1-0.2
- (B) 0.2-0.5
- (C) 0.4-0.9
- (D) 1.2-1.5
- (A) 6
- (B) 18
- (C) 24
- (D) 34
- (A) More
- (B) Less
- (C) Same
- (D) Either
