- (A) S1/S2
- (B) S1.S2
- (C) S2/S1
- (D) 1/S1.S2
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- (A) Raschig rings
- (B) Raschig rings
- (C) Cross-partition rings
- (D) All give the same value
- (A) 4(0.86P2 – πd2/4)/πd
- (B) (P2 – πd2/4)/πd
- (C) 4(0.86P2 – πd2)/πd
- (D) (4P2 + πd2/4)/πd
- (A) 1 to 5
- (B) 20 to 100
- (C) 500 to 750
- (D) 1000 to 2000
- (A) Hemispherical
- (B) Elliptical
- (C) Torispherical
- (D) None of these
- (A) Reducing scale deposition
- (B) Increasing pressure drop
- (C) Fixing the tubes
- (D) Creating turbulence
- (A) Equal to
- (B) Twice
- (C) Four times
- (D) Half
- (A) Double pipe heat exchanger
- (B) Multipass shell and tube heat exchanger
- (C) Fouling fluids
- (D) Counter flow of hot and cold fluids
- (A) Positive
- (B) Negative
- (C) No
- (D) None of these
- (A) Triangular pitch
- (B) Square pitch
- (C) Diagonal square pitch
- (D) Heat transfer rate is independent of tube arrangement
