Mass Transfer Quiz 9
1 / 50
Rotary dryers cannot handle ________ materials ?
2 / 50
Solvent used in extractive distillation_____?
3 / 50
Pick out the wrong statement?
4 / 50
Solvent extraction is the terminology applied to the liquid-liquid extraction, which is preferred for the separation of the components of liquids, when______?
5 / 50
Rose oil is extracted from rose leaves using _____ distillation?
6 / 50
Plate efficiency in a distillation column is reduced due to the ________ of liquid?
7 / 50
Small dia distillation column can be a ___________?
8 / 50
Rayleigh?s equation applies to __________ distillation?
9 / 50
Selectivity of the solvent used in solvent extraction should be)__________?
10 / 50
Radioactive nuclear waste is treated in______?
11 / 50
Smoke is an example of _____?
12 / 50
Rayleigh?s equation applies to _________ distillation?
13 / 50
Plate towers are preferred to packed towers, when large temperature changes are involved, because of the reason that the______?
14 / 50
Pressure drop through plate tower as compared to that through packed tower, for the same duty will be_____?
15 / 50
Psychrometry deals with the properties of gas-vapor mixture. Humidity can be determined by the measurement of the _________ of a fibre ?
16 / 50
Rayleigh equation applies to __________ distillation ?
17 / 50
Raoult?s law does not apply, when the_____?
18 / 50
Priming in a distillation column__________?
19 / 50
Schmidt number and Lewis number for pure air at atmospheric conditions are respectively___________?
20 / 50
Rate of leaching increases with increasing________?
21 / 50
Reverse osmosis is also called__________?
22 / 50
Positive deviation from Raoult?s law means a mixture whose total pressure is_____?
23 / 50
Reboiler is considered as one theoretical plate, because_______?
24 / 50
Relative humidity is the ratio of the________?
25 / 50
Plate efficiency in a distillation column is reduced due to the _______ of liquid?
26 / 50
Powdery materials can be guarded against caking tendency on storage by_____?
27 / 50
28 / 50
Solvent used in extractive distillation___________?
29 / 50
Ponchon-Savarit method analyses the fractional equipment based on_____?
30 / 50
Separation of two volatile liquids by distillation makes use of their_____?
31 / 50
Raoult?s law applies to the_____?
32 / 50
Relative volatility does not change appreciably with the change in_______?
33 / 50
Relative volatility varies with the concentration of component for an ideal solution. The relative volatility of a binary mixture may be defined as the ratio of vapor pressure of component ?A? to that of component ?B?, when__________?
34 / 50
Raoult?s law is applicable to the_______?
35 / 50
Schmidt number is given by _____?
36 / 50
Sides of equilateral-triangular co-ordinates (on which ternary liquid system is plotted) represent ________?
37 / 50
Separation of two volatile liquids by distillation makes use of their__________?
38 / 50
Sodium bicarbonate is produced during soda ash manufacture using a ________ tower?
39 / 50
Separation of two or more components of a liquid solution cannot be achieved by_____?
40 / 50
Polar organic compounds are normally used as separating agents for the azeotropic and extractive distillation. Which of the following is the most important factor to be considered for the choice of the separating agent for extractive distillation ?
41 / 50
Sand is dried in foundries in a ________drier?
42 / 50
Raschig ring made of porcelain cannot be used for treating concentrated_____?
43 / 50
Separation of a mixture of two gases by absorption in the liquid solvent depends upon the difference in their______?
44 / 50
Plate efficiency_________?
45 / 50
Powdery materials can be guarded against caking tendency on storage by__________?
46 / 50
Pore size of the molecular sieve 5A is ______ mm ?
47 / 50
Refractory bricks are usually dried in a _________ dryer?
48 / 50
Removal of _______ exemplifies an adsorption unit operation?
49 / 50
Prandtl number for water at 20?C is about _________?
50 / 50
Separation of the isotopes of helium for scientific investigations is done by_______?
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