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