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