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