A. Large surface per unit volume
B. Large free cross-section
C. Low weight per unit volume
D. Large weight of liquid retained
Correct Answer: Large weight of liquid retained ✔
Last Updated: February 16, 2019
Related MCQs
- Which of the following is directly concerned with Psychrometry ?
- At the boiling point of the liquid at the prevailing pressure, the saturated absolute humidity becomes__________?
- Ammonia present in the coke oven gas is removed by washing with__________?
- For ethanol-water system, the lowering of distillate quality from 95% to 92% will cause __________ plate requirement?
- Lewis number (Le) is__________?
- Most important factor to be considered in the selection of packings for absorbers is the __________ of packing?
- To get high tray efficiency__________?
- In a gas-liquid absorption column, for obtaining the maximum absorption efficiency__________?
- The slope of the operating line for a single component co-current absorber when plotted in terms of mole ratio units is__________?
- For a ternary mixture, in which equilateral triangular co-ordinate is used in leaching and extraction, a __________ of the equilateral triangular co-ordinates?
- Leaching of uranium ore and gold ore is done in__________?
- In case of physical adsorption, the difference between heat of adsorption and heat of normal condensation is__________?
- Humidity chart is useful for the solution of problems concerning condensation, vaporisation and air conditioning. At a given dry bulb temperature, value of humidity obtained from the humidity chart directly, is in terms of __________ humidity?
- Powdery materials can be guarded against caking tendency on storage by__________?
- The minimum liquid rate to be used in an absorber corresponds to an operating line__________?
- Separation of two volatile liquids by distillation makes use of their__________?
- The critical moisture content in case of drying indicates the __________ rate period?
- The drying time between fixed moisture content within diffusion controlled ‘falling rate period’ is proportional to (assuming that drying occurs from all surfaces of the solid) (where, T = thickness of the solid) ?
- The dew point of an unsaturated gas-vapor mixture does not depend upon the __________ of the mixture?
- The slope of 9-line is determined by the__________?
- Freundlich equation applies to the adsorption of solute from__________?
- A solid is being dried in the linear drying rate regime from moisture content Xo to XF. The drying rate is zero at X = 0 and the critical moisture content is the same as the initial moisture Xo. The drying time for M = (Ls/ARc) is (where, L = total mass of dry solid, A = total surface area for drying Rc = Constant maximum drying rate per unit area X = moisture content (in mass of water/mass of dry solids))__________?
- The Hatta number is important in__________?
- For a binary mixture with low relative volatility__________?
- The interfacial area per unit volume of dispersion, in a gas-liquid contactor, for fractional hold up of gas = 0.1 and gas bubble diameter = 0.5 mm is given by (in m2/m3) ?
- Rayleigh’s equation applies to __________ distillation?
- In extraction, as the temperature increases, the area of heterogeneity (area covered by binodal curve)__________?
- Blowdown in a cooling tower__________?
- Plate efficiency in a distillation column is reduced due to the __________ of liquid?
- The wet and ‘dry bulb temperature for a vapour-gas mixture are 25°C and 30°C respectively. If the mixture is heated to 45°C at constant pressure, the wet bulb temperature will be __________ °C?
- Pick out the wrong statement. Raoult’s law does not apply, when the__________?
- Pick out the wrong statement pertaining to the analogy between equations of heat and mass__________?
- Water entrained by circulating air in cooling towers is termed as__________?
- Alcohol is dehydrated using __________ distillation?
- Pick out the wrong statement ?
- Pick out the wrong statement pertaining to the cooling towers ?
- Pick out the wrong statement?
- Pick out the wrong statement ?
- Pick out the wrong statement?
- Pick out the wrong statement ?
- Pick out the wrong statement ?
- With increase in temperature, the mutual solubility of two liquids__________?
- The diffusivity D. in a binary gas mixture is related to the pressure (P) as__________?
- Mass transfer co-efficient is directly proportional to DAB according to the __________ theory?
- Dorr thickener is an equipment used for__________?
- Can the efficiency of a plate in the distillation tower be greater than 100% ?
- With the lowering of equilibrium pressure, at a given temperature, the amount of adsorbate on the adsorbent ?
- H2S present in naphtha reformed gas is removed by absorbing with__________?
- In liquid extraction, if the selectivity is unity, then__________?
- Drying of a wet solid under constant drying conditions means the exposure of the wet solid to the air of constant__________?
- Design calculation for multiple component distillation is done by__________?