A. 0.5″ -1.25″
B. 2″-3.5″
C. 5″
D. Half the tray spacing
The maximum liquid gradient over a tray must not exceed__________________? Read More »
Process Equipment and Plant Design A. 2.5
B. 5
C. 12.5
D. 17.5
A. Screwing
B. Welding
C. Brazing
D. All A., B. and C.
Flanges are connected to pipes by _______________________? Read More »
Process Equipment and Plant Design A. Plate tower is preferred, if interstage cooling is required to remove heats of reaction or
solution
B. Plate tower is preferred over packed tower, if the operation involves liquids containing
dispersed solids
C. The total weight of a dry plate tower is usually much more than that of a dry packed tower
designed for the same duty
D. In operations involving large temperature changes. (e.g. distillation), plate towers are
preferred over packed towers as the packing may be crushed due to large temperature changes
A. Lug
B. Skirt
C. Saddle
D. Guy wire
A. Minimum cleaning lane of 6.5 mm is provided, when tubes are on a square pitch
B. Minimum tube sheet thickness (in which tubes are fixed) is equal to the O.D. of the tube upto
15 mm tube diameter; and for > 15 mm tube diameter, tube sheet thickness is smaller than
tube diameter
C. O.D. of the tube is 6 to 40 mm while the tube lengths used are 0.5, 2.5, 3.0, 4.0, 5.0, 6 metres
D. All A., B. & C.
In case of design of a shell and tube heat exchanger___________________? Read More »
Process Equipment and Plant Design A. Increases
B. Decreases
C. Remain unaffected
D. None of these
A. Smaller than
B. Greater than
C. Equal to
D. Not related with
The equivalent diameter for pressure drop is _______________ that for heat transfer? Read More »
Process Equipment and Plant Design A. Foamy
B. Scaling
C. Viscous
D. Salting
________________ liquor is best handled in a long tube vertical evaporator ? Read More »
Process Equipment and Plant Design A. Long tube vertical evaporator
B. Short tube vertical evaporator
C. Horizontal tube evaporator
D. None of these
