- (A) Capacity of the evaporator is decreased
- (B) Capacity of the evaporator is increased
- (C) True temperature drop increases
- (D) Both
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- (A) Heating volume
- (B) Heat transfer area
- (C) Nusselt number
- (D) None of these
- (A) k/ρCp
- (B) ρCp/k
- (C) μCp/a
- (D) μ/hCp
- (A) Least at the inlet of the first effect
- (B) Least at the outlet of the last effect
- (C) Highest at the inlet of the last effect
- (D) Highest at the outlet of the last effect
- (A) Aluminium foil
- (B) Coal dust
- (C) Refractory bricks
- (D) Iron plates
- (A) Fourier’s law
- (B) Newton’s law of cooling
- (C) Fick’s law
- (D) None of these
- (A) Always less than h1
- (B) Always between h1 and h2
- (C) Always higher than h2
- (D) Dependent on metal resistance
- (A) Flows through the tube
- (B) Flows outside the tubes
- (C) Can flow either inside or outside the tubes
- (D) Should not be used as it gives very high pressure drop
- (A) Boiling point elevations
- (B) Temperature of the feed
- (C) Rate of heat transfer
- (D) Ratio of the weight of the thin liquor to thick liquor
- (A) Exit-fluid temperature > wall temperature
- (B) Exit fluid temperature < wall temperature
- (C) Exit fluid temperature = wall temperature
- (D) Graetz number > 100
