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