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