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