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