A. Heat transfer co-efficient is proportional to 0.8th power
B. Pressure drop is proportional to the square
C. Both A. & B.
D. Neither A. nor B.
A. S1/S2
B. S1.S2
C. S2/S1
D. 1/S1.S2
A. Raschig rings
B. Raschig rings
C. Cross-partition rings
D. All give the same value
A. Size, shape, orientation and surface of the packing particles
B. Density and viscosity of fluids
C. Fluid flow rates
D. All A., B. and C.
A. 1.5 to 2
B. 3 to 4
C. 4 to 5
D. > 5
A. Hemispherical
B. Dished
C. Ellipsoidal
D. Conical
A. -q
B. -q/(1-q)
C. -q/(q-1)
D. None of these
A. 2 to 3
B. 3 to 5
C. 4 to 8
D. 6 to 12
A. Resistance offered to flow of liquids by caps & risers and the flow of gas
B. Low gas velocity
C. Large plate spacing
D. Large reflux ratio
A. Flow rates of each fluid
B. Type and size of packing
C. Concentration of each fluid
D. All A, B. & C.