Category: Process Equipment and Plant Design

A. It is unsuitable for concentrating those liquids, which form a scale or deposit salt
B. It is suitable for process, in which the final product is a liquor instead of solid
C. Its usual dimensions are: tube dia = 2-3 cms; evaporator body dia = 1-4 metres and evaporator
height = 2.5-4 metres
D. Liquor flows inside the tube, while the steam is outside submerging the tube

A. Heat transfer between corrosive fluids
B. Cases where temperature difference between the shell and the tubes is more (>50°C)
C. Co-current heat transfer systems
D. Counter-current heat transfer systems

A. -q
B. -q/(1-q)
C. -q/(q-1)
D. None of these

A. Positive
B. Negative
C. No
D. None of these

A. Welded
B. Screwed
C. Flanged
D. Brazed

A. 1.5 to 2
B. 3 to 4
C. 4 to 5
D. > 5

A. Preventing the local overstressing of the shell around the opening
B. Reduction of discontinuity in shape at the junction
C. Making the joint leak proof
D. None of these

A. A finite stage contactor
B. Used only for distillation, not for absorption
C. A differential stage contactor
D. A continuous contactor

A. When highly corrosive fluids are to be handled, the plate towers prove to be cheaper and easier to construct than packed tower
B. Packed towers are generally preferred over plate towers, if the liquids have a foaming tendency
C. The pressure drop through the packed towers is generally more than the pressure drop through plate towers designed for same duty
D. None of these

A. 300
B. 600
C. 1000
D. 1500