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