A. Allowable gas velocity through the slots
B. Plate spacing
C. Diameter of the column
D. All A., B. and C.
A. Raschig rings
B. Raschig rings
C. Cross-partition rings
D. All give the same value
A. O.D. of the tube for square pitch
B. Shortest distance between two adjacent tube holes
C. Shortest centre to centre distance between adjacent tubes
D. None of these
A. Withstand higher pressure for a given metallic shell thickness
B. Be fabricated very easily
C. Be designed without wind load considerations
D. Be supported very easily
A. Flow rates of each fluid
B. Type and size of packing
C. Concentration of each fluid
D. All A, B. & C.
A. Absorbing the contraction/expansion of pipeline due to temperature changes
B. Prevention of fluid leakage around moving parts
C. Facilitating smooth opening and closing of a valve
D. Reducing the resistance of fluid flow
A. Radial
B. Circumferential tensile
C. Compressive
D. Longitudinal