Pick out the wrong statement pertaining to the design of a horizontal tube evaporator ?
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. 1 to 5
B. 10 to 20
C. 30 to 40
D. 40 to 50
A. 1.3 to 2
B. 1.6 to 2
C. 2.5
D. 1.5 to 3
______________ closure is the weakest enclosure for cylindrical vessels?
A. Hemispherical
B. Torispherical
C. Conical or flat plate
D. Elliptical
A. Tubes to avoid the expansion of high pressure shell construction
B. Shell side for smaller total pressure drop
C. Shell side, if the flow is counter-current and tube side if the flow is co-current
D. Shell side for large overall heat transfer co-efficient