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