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